A sample of size 49 is randomly selected from a population with a mean, 25 and standard deviation, 14. Find P(X-bar > 26)

Answers

Answer 1

Answer:

P(X>26)=0.4721

Step-by-step explanation:

\(Mean = \mu = 25\)

Standard deviation = \(\sigma = 14\)

No. of observations = n = 49

We are supposed to find\(P(\bar{X} > 26)\)

\(Z = \frac{x-\mu}{\sigma}\\Z=\frac{26-25}{14}\\Z=0.0714\)

Refer the Z table for p value

P(X<26)=0.5279

P(X>26)=1-P(X<26)=1-0.5279=0.4721

Hence P(X>26)=0.4721


Related Questions

A book is bought for 350 and sold for R490. Calculate the percentage profit.​

Answers

well, the profit is clearly just 490 - 350 = 140.

Now, if we take 350(origin amount) to be the 100%, what is 140 off of it in percentage?

\(\begin{array}{ccll} Amount&\%\\ \cline{1-2} 350 & 100\\ 140& x \end{array} \implies \cfrac{350}{140}~~=~~\cfrac{100}{x} \\\\\\ \cfrac{5}{2} ~~=~~ \cfrac{100}{x}\implies 5x=200\implies x=\cfrac{200}{5}\implies x=40\)

A game requires you to toss a 10-sided numbered solid
and a 6-sided numbered solid to determine how to move
on a game board. Find the following probabilities.

a. P(same number on both)

b. P(odd, even) or P(even, odd)

Answers

P(same number on both) = 10/60 = 1/6 and P(odd, even) or P(even, odd)  = 1/4

How to find the probabilities

There are 10 possible outcomes on the 10-sided die and 6 possible outcomes on the 6-sided die

The total number of possible outcomes is 10 x 6 = 60.  

To get the same number on both, we need to get one of the 10 numbers on the first toss and then get the same number on the second toss. There are 10 ways to do this. Therefore, the probability of getting the same number on both is:

P(same number on both) = 10/60 = 1/6

b. To get an odd and an even number, we need to get an odd number on the first toss and an even number on the second toss, or vice versa.

There are 5 odd numbers and 5 even numbers on the 10-sided solid, and 3 even numbers and 3 odd numbers on the 6-sided solid.

Therefore, the probability of getting an odd and an even number, or an even and an odd number, is:

P(odd, even) or P(even, odd) = (5/10) x (3/6) + (5/10) x (3/6) = 1/4

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A candy bar that originally sold for $.60 undergoes a 3% price increase each year.

Answers

Both calculations from part (1) and part (2) yield the same result of $0.86 for the new cost of the candy bar after 11 years.

Part 1 of 2:

The new cost of the candy bar after 11 years can be calculated by applying a 3% price increase each year to the original cost of $0.60.

To calculate the new cost after 11 years, we can use the formula:

New Cost = Original Cost * (1 + Percentage Increase)^Number of Years

Plugging in the values:

New Cost = $0.60 * (1 + 3%)^11

        ≈ $0.60 * (1 + 0.03)^11

        ≈ $0.60 * (1.03)^11

        ≈ $0.60 * 1.432364654

Rounding to the nearest cent, the new cost of the candy bar after 11 years is $0.86.

Part 2 of 2:

If the cost of the candy bar increased by 3% of the original cost each year for 11 years, we can calculate the final cost by multiplying the original cost by (1 + 3%) for each year.

Using the formula:

Final Cost = Original Cost * (1 + Percentage Increase)^Number of Years

Plugging in the values:

Final Cost = $0.60 * (1 + 3%)^11

          ≈ $0.60 * (1 + 0.03)^11

          ≈ $0.60 * (1.03)^11

          ≈ $0.60 * 1.432364654

Rounding to the nearest cent, the final cost would also be $0.86.

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Note: The complete question is - What will be the cost of the candy bar after a specific number of years if it originally sold for $.60 and undergoes a 3% price increase each year?

Clayton Burrington purchased the following school supplies on s
$2.79 notebook for $1.99, a $1.49 ballpoint pen for $0.99, a $1.99 p
notebook paper for $0.99, and a $3.49 automatic pencil for $2.79.
Clayton estimated the total savings to be $7.00. (a) Is the answer
reasonable? (b) If not, what error was made?

Answers

Answer:

The answer is not reasonable.

The error that Clayton made was that he accidentally added all of the products that had a saved price tag on it, he did not find the difference between the old price and the new, sales price.

Step-by-step explanation:

Hope this helps :) Mark me brainliest if anyone else answers this question.

Find the volume: 3 12" X 6' x 9' =

Answers

Answer:

31104

Step-by-step explanation:

First, we turn all of the units into inches, so we multiply the feet by 12:

3 · 12; 6 · 12; 9 · 12

Calculate: 36; 72; 108

Add each measurement to its respective side:

36 + 12 · 72 · 108

Compute:

48 · 72 · 108 =

373,248

However, this is in inches. Divide by 12 to get feet:

373,248 ÷ 12 =

31104 cubic feet.

On a number line, point C is at 8, and the midpoint E of CD is at -3.
Point D is at
on the number line.

Answers

Answer: C

Step-by-step explanation:

Point D is at -14 on the number line.

How to determine the midpoint of a line segment?

In Mathematics, the midpoint of a line segment with two end points can be calculated by adding each end point on a line segment together and then divide by two (2).

Since E is the midpoint of line segment CD, we can logically deduce the following relationship:

Line segment CD = Line segment C + Line segment D

Midpoint E = (point C + point D)/2

By substituting the given points into the equation above, we have the following:

-3 = (8 + D)/2

-6 = 8 + D

D = -6 - 8

D = -14

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What is angle
Enter your answer in the box

What is angle Enter your answer in the box

Answers

Answer:

CAB is 37 degrees

Step-by-step explanation:

90 + 53 = 143

180 - 143 = 37

Please give explanation too, not just answers <3

Please give explanation too, not just answers &lt;3

Answers

As x gets larger and larger, the value of y approaches zero.

The graph of \(y = (1/2)^x\) does not have an x‑intercept.

The graph of \(y = (1/2)^x\) does not have a vertical asymptote because there isn't a vertical line that the graph above approaches.

What is an exponential function?

In Mathematics, an exponential function can be represented by using the following mathematical equation:

\(f(x) = a(b)^x\)

Where:

a represents the initial value or y-intercept.x represents time.b represents the rate of change.

Based on the information provided about this graph, an exponential function which it models is given by;

\(y = (1/2)^x\)

When x = 100, the value of y is given by;

\(y = (1/2)^{100}\)

For the x-intercept when y = 0, we have:

\(0 = (1/2)^x\)

By taking the ln of both sides, we have:

0 = 1 (false).

In conclusion, this exponential function \(y = (1/2)^x\) does not have a vertical asymptote because its denominator can never be equal to zero.

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Please give explanation too, not just answers &lt;3

Question Which is closest to the surface area of the figure below? 1463.8 m squared 578.1 m squared 923.2 m squared 3692.6 m2

Question Which is closest to the surface area of the figure below? 1463.8 m squared 578.1 m squared 923.2

Answers

The closest option to the cone area is 923.2 m². 

What is a cone?

A cone is a shape formed from a series of line segments or lines that connect a common point, called a vertex or vertex, to all points on the base of a circle that do not contain vertices. The distance from the apex of the cone to the base is called the height of the cone.

To solve this problem, we need to find the surface of the cone. Formula for the surface area of cone:

A = \(\pi\)r² + \(\pi\)rℓ

where r is the radius of the base, ℓ is the height of the depression, and π is a constant of approximately 3.14159.

First, we find the radius of the base. Since the bottom line of the cone is listed as 18 feet and we know the radius is 14 feet, we can use the Pythagorean theorem to find the height of the cone.

h² = ℓ² - r²

h² = 19.3² - 14²

h ≈ 11.48 feet

Now we can compute the surface.

A = \(\pi\)(14)² + \(\pi\)(14)(19.3)

A ≈ 923.2 square feet

So the closest option to the cone area is 923.2 m². 

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Help fast Fast Fast Fast

Help fast Fast Fast Fast

Answers

Answer:

0,5

Step-by-step explanation:

Missing number 5 or it can be a 0

This is beacause a number that ends with 0 or 5 is divisible by 5. Divisibilitiy rules state that!

Ex: 5 x 5 = 25

5 x 4 = 20

Find value of x in trapezoid

Find value of x in trapezoid

Answers

Answer:

  x = 1

Step-by-step explanation:

You want to know the value of x in the trapezoid with adjacent angles (43x+2)° and 135°.

Supplementary angles

The two marked angles can be considered "consecutive interior angles" where a transversal crosses parallel lines. As such, they are supplementary.

  (43x +2)° +135° = 180°

  43x = 43 . . . . . . . . . . . . . . divide by °, subtract 137

  x = 1 . . . . . . . . . . . . . . . divide by 43

The value of x is 1.

__

Additional comment

Given that the figure is a trapezoid, we have to assume that the top and bottom horizontal lines are the parallel bases.

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the exact value of sin 5pi/12 is

Answers

The exact value of sin(5π/12) is (√6 + √2)/4

Calculating the exact value of sin 5pi/12

From the question, we have the following parameters that can be used in our computation:

sin 5pi/12

Express properly

So, we have

sin(5π/12)

Convert the angle to degrees

This gives

sin(5π/12) = sin(5/12 * 180)

Evaluate

sin(5π/12) = sin(75)

The actual value of sin(75) is (√6 + √2)/4

This means that

sin(5π/12) = (√6 + √2)/4

Hence, the exact value of sin(5π/12) is (√6 + √2)/4

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The exact value of sin 5π/12 is (√6 + √2)/4

What is trigonometric function?

The trigonometric functions are real functions which relate an angle of a right-angled triangle to ratios of two side lengths.

Angle in trigonometry can be measured in either degree or radian.

π is a measurement in radian which is equivalent to 180° in degrees.

Therefore:

5π/12 = 5 × 180/12

= 75°

Therefore sin5π/12 = sin75°

sin75 = sin( 45+30) = sin45cos30+ cos 45sin30

= 1/√2 × √3/2 + 1/√2 × 1/2

= √3/2√2 + 1/2√2

= (√3+1)/2√2

rationalizing;

(2√6 + 2√2)/8

dividing through by 2

=(√6 + √2)/4

therefore tan75 =(√6 + √2)/4

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PLEASE HELP
Suppose that the functions fand g are defined for all real numbers x as follows.
f(x) = 5x
g(x)=4x-4
Write the expressions for (g.f)(x) and (g-f)(x) and evaluate (g+f)(2).
(g•f)(x) =
(g-f)(x) =
(g+r) (2)=

Answers

(g•f)(x) = (4x - 4) • (5x)
= 20x^2 - 16

(g - f)(x) = (4x - 4) - (5x)
= (-1x) - 4
= -x -4

(g + f)(2) = (4(2) - 4) + (5(2))
= 4 + 10
= 14

what is the calculation of
\(2 5 \6 - (4 1 \3 - 3 \2)\)

what is the calculation of [tex]2 5 \6 - (4 1 \3 - 3 \2)[/tex]

Answers

25 ( 13 - 3) 6 ( 3 2)

25 ( 39 -9)

6 (6)

25 × 30

6 6

125

6

20 5 [ans]

6

PLEASE HELPPP THANKS​

PLEASE HELPPP THANKS

Answers

Answer: The last option. X is greater than or equal to -3

Step-by-step explanation:

If you are searching for all of the values highlighted in red, then it must be every single value greater than x=-3 including the value itself (the dot located on the value is shaded, therefore you must include it within the domain).

Suppose the function h(x) = 2x - 9 is translated up 5 units to become a new function,
Xx). What's the equation of the new function?
A) x) = 7x-4
B)(x) = 2x - 14
C)(x) = 7x-9
D) (x)=2x-4

Answers

According to the given data the equation of the new function is (D) f(x) = 2x - 4.

What is meant by equation?

An equation is a mathematical statement that indicates that two expressions are equal. It contains an equals sign "=" and may involve variables, constants, and mathematical operations such as addition, subtraction, multiplication, division, exponentiation, etc.

According to the given information:

If we translate the function h(x) = 2x - 9 up by 5 units, the new function f(x) will have the form:

f(x) = h(x) + 5

Substituting the definition of h(x) into this equation, we get:

f(x) = 2x - 9 + 5

Simplifying, we have:

f(x) = 2x - 4

Therefore, the equation of the new function is (D) f(x) = 2x - 4.

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I usually have an answer to the question
But this time I'm gon' be quiet (this time)
Ain't nothing like the feeling of uncertainty, the eeriness of silence
This time, it was so unexpected
Last time, it was the dru.gs he was lacing
All legends fall in the making
Sorry truth, dying young, dem-on youth
What's the 27 Club?
We ain't making it past 21
I been going through paranoia
So I always gotta keep a g-un
Da-mn, that's the world we live in now
Yeah, hold on, just hear me out
They tell me I'ma be a legend
I don't want that title now
'Cause all the legends seem to die out

Answers

Answer:is this the question?

Step-by-step explanation:

Answer:

This sounds like a poem but more of a song . But are you asking a question??

Step-by-step explanation:

Help!! Factor the common factor out of each expression

Help!! Factor the common factor out of each expression

Answers

Therefore , the solution of the given problem of equation comes out to be factor is (5b)(-5b+3).

What is the equation?

A formula for connecting two statements using the equal sign (=) to denote equivalence is known as a mathematical equation. A mathematical equation in algebra is a statement that proves the equality of two mathematical expressions. For instance, the formula 3x + 5 = 14 places an equal sign between the variables 3x + 5 and 14. The mathematical relationship between the two sentences on either side of a letter is established. Most of the time, the symbol serves as both the one and only variable. for instance, 2x – 4 = 2.

Here,

the two numbers' primary factors are as follows:

-25\(b^{2}\) + 15b

Common prime factors can be multiplied to determine the GCF:

=> -25\(b^{2}\)  = -(5)(5) * \(b^{2}\)

=> 15b = (5)(3)b

The expression can be factored in the following fashion because the GCF is 5b:

=> -(5)(5) * \(b^{2}\) +  (5)(3)b

=> (5b)(-5b+3)

Therefore , the solution of the given problem of equation comes out to be factor is (5b)(-5b+3).

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Please help me need ASAP

Please help me need ASAP

Answers

Answer:

B

Step-by-step explanation:

Because you will divide U in X the give you correct answer.

50 POINTS HELP TRIGONOMETRY!!!

1. For each triangle below, write three ratios for the marked angle.

2. Find the measure of
3. Find the length of side x to one decimal place.

50 POINTS HELP TRIGONOMETRY!!!1. For each triangle below, write three ratios for the marked angle. 2.

Answers

1) The three main trigonometric ratios of the given triangle are:

sin B = 5/9.43

cos B = 8/9.43

tan B = 5/8

2) The measure of angle A is: ∠A = 39.6°

3) The length of side x is: x = 39.5 mm

How to find the trigonometric ratios?

The six trigonometric ratios of a right angle triangle are:

sin x = opposite/hypotenuse

cos x = adjacent/hypotenuse

tan x = opposite/adjacent

cot x = 1/tan x

sec x = 1/cos x

cosec x = 1/sin x

1) The three main trigonometric ratios of the given triangle are:

sin B = 5/9.43

cos B = 8/9.43

tan B = 5/8

2) The measure of angle A is gotten from:

∠A = cos⁻¹ (47/61)

∠A = 39.6°

3) The length of side x using trigonometric ratios is:

21/x = tan 28

x = 21/tan 28

x = 39.5 mm

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The system shown is
O
inconsistent

equivalent
consistent

Answers

Answer:

This is pogers

Step-by-step explanation:

What is ur minecraft usernaem

Answer:

consistent  

A consistent and independent solution to a system of linear equations is one point

A consistent and dependent solution to a system of linear equations is where they are the same line ( they could also be called equivalent)

An inconsistent solution is where there is no solution, the lines do not cross

Since the lines cross at exactly one point, this is a consistent and dependent solution

The solution is at x = 3  ( 3 units to the right of the origin)

and y = 2 ( 2 units up from the origin)

Step-by-step explanation:


33 miles per gallon is approximately equal to how
many kilometers per liter? (Use 1 kilometer =
0.62 mile and 1 gallon = 3.79 liters.)

Answers

Answer:

14.04 km/L

Step-by-step explanation:

I km = 0.62 mile

or

1 mile = 1/0.62 km

1 gallon = 3.79 liters

So, 33 miles per gallon is:

= \(\frac{33*(1/0.62)}{3.79}\)

= 14.04 km/L

Hope this helps you. Do mark me as brainliest

33 miles per gallon is approximately equal to 14.01 kilometers per liter

What is conversion?

"Conversion is the process of changing the value of one form to another."

For given example,

We know, 1 kilometer = 0.62 mile and 1 gallon = 3.79 liters

We need to convert 33 miles per gallon.

1 mile = 1.61 km

1 gallon = 3.79 liters

⇒ 33 × (1.61/3.79) = 14.01 kilometers per liter

Therefore, 33 miles per gallon is approximately equal to 14.01 kilometers per liter

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For each equation, determine whether it represents a direct variation, an inverse variation, or neither.
Find the constant of variation when one exists and write it in simplest form.

For each equation, determine whether it represents a direct variation, an inverse variation, or neither.Find

Answers

The equation 15x + 5y = 0  is a direct variation and the constant of variation is -3 while the equation -5x + 8y = 3 is neither a direct variation nor an inverse variation

How to categorize the type of each equation?

As a general rule, we have the following forms of equation:

Direct variation: y =kx

Inverse variation: y = k/x

Where k represents the constant of variation

The equations 15x + 5y = 0 can be rewritten as:

5y = -15x

Divide by 5

y = -3x

The above equation take the form y = kx

This means that k = -3

Hence, the equation 15x + 5y = 0  is a direct variation and the constant of variation is -3

However, the equation -5x + 8y = 3 do not take any of the given forms

Hence, the equation -5x + 8y = 3 is neither a direct variation nor an inverse variation

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What is the solution to 4|x - 6 ≤ 16?
Ox≤2 or x ≥ 10
02≤x≤ 10
0-10≤x≤2
Ox≤-10 or x ≥ 2

What is the solution to 4|x - 6 16?Ox2 or x 1002x 100-10x2Ox-10 or x 2

Answers

the answer is 2 ≤x≤ 10

PLEASE HELP ME I HAVE BEEN STRUGGLING FOR THE PAST HOUR CORRECT ANSWER WILL BE MARKED BRAINLEST

Answers

Answer:

I need the question

Step-by-step explanation:

Can i have brainliest anyways? I need one more :)

Answer:

whats the question

Step-by-step explanation: or sir

What is the value of x? □ ft. ( Will Mark Brainliest working on it now ). ​

What is the value of x? ft. ( Will Mark Brainliest working on it now ).

Answers

Answer:

67.5 ft

Step-by-step explanation:

Use the ratio of corresponding sides:

97.5/x = 71.5/(71.5 - 22)97.5/x = 71.5 / 49.5x = 97.5*49.5/71.5x = 67.5

33. Jeremy works at a bank and earns $800 for a 40-hour week. His sister, Beth works at a school and only earns $700 for a 30-hour week. Who makes more per hour?

A. Jeremy makes $10 more per hour
B. Beth makes $10 less per hour
C. Beth makes at least $3 more per hour
D. Jeremy makes at least $5 more per hour

Answers

Answer:

Step-by-step explanation:

Jeremy

Pay = 800

Time = 40 hours

Per hour pay= 800/40 = 20 dollars per hour.

Beth

Pay = 700

Time = 30 hours

Per hour Pay= 700 / 30 = 23.33

The answer is C. She gets 23.33 which is 3.33 more than her brother makes.

what is the variable "d" equal to in the equation 2d + 13

Answers

More context is needed

Answer:

d=-6.5

Step-by-step explanation:

2d+13=0

2d=-13

d= -13/2

d=-6.5

I really need help. Pweez?

I really need help. Pweez?

Answers

Answer:

37

Step-by-step explanation:

top triangels 3 x4 = 12

Side triangels 1 x 5 = 5

the squer   4x 5 = 20

20 +5 +12= 37

Answer:

Step-by-step explanation:

20 inches i think

Question 6
Do set of numbers DO NOT form a Right Triangle?
9, 12, 15
5, 12, 13
3,4,5
4,5,6

Answers

Answer:

4,5,6

Step-by-step explanation:

square root of 4²+5²= approximately 6.4

Other Questions
Let g(x) = 3x + 7 and h(x) = x + 8.(hog)(x) What is a number that is at most 30 a business firm is subject only to the laws of its home nation even when it maintains operations or otherwise does business in other nations. true false SIMPLIFY THE FOLLOWING EXPRESSION She on put her coat on and went out On January 1, 2000, there were 175,000 tons of trash in a landfill that had a capacity of 325,000 tons. Each year since then, the amount of trash in the landfill increases by 7.500 tons. If y represents the time, in years, after January 1, 2000. Required:What inequalities describes the set of years where the landfill is at or above capacity? which statement is correct about the rocks in this location The activity of the glycolytic enzyme phosphofructokinase-1 is increased by which one of the following molecules? Fructose-6-phosphateATP Fructose-1,6-bisphosphate Fructose-2.5-bisphosphate Assume that there are two factors that price assets. Risk free rate is 3%. Factor 1 has an expected return of 7% and factor 2 has an expected return of 9%. Calculate the expected return for each asset with the following sensitivities using the Arbitrage Pricing Theory (APT): (a) 1=1,2=0.8;(5 marks ) (b) 1=1.2,2=0.50;(5 marks ) (c) 1=0.8,2=1.5. (5 marks) Sugar is C6H12O12 and ammonia is NH3 . If you have 7 moles of both Sugar and ammonia do you have the same amount .Part A)A buffer solution is made that is 0.304 M in H2CO3 and 0.304 M in NaHCO3.If Ka1 for H2CO3 is 4.20 x 10^-7 , what is the pH of the buffer solution?pH =Write the net ionic equation for the reaction that occurs when 0.088 mol KOH is added to 1.00 L of the buffer solution.(Use the lowest possible coefficients. Omit states of matter.)PART B)A buffer solution is made that is 0.311 M in H2CO3 and 0.311 M in KHCO3.If ka1 for H2CO3 is 4.20 x 10^-7, what is the pH of the buffer solution?pH =Write the net ionic equation for the reaction that occurs when 0.089 mol HI is added to 1.00 L of the buffer solution.(Use the lowest possible coefficients. Omit states of matter. Use H3O instead of H ) 28 yo F presents with pain in the interphalangeal joints of her hands accompanied by hair loss and a butterfly rash on her face. What the diagnose? Common stock price= 16.38. 3 million shares of common stock. 22 million of preferred stock and $70million debt. What is the weight of common stock used to calculate WACC? sherry has decided to visit her professor during office hours in order to talk about her grade on the last exam. upon entering her professor's office, she notices piles of papers everywhere, open books laying on the floor, and candy wrappers on the desk. regarding the professor's personality, sherry can make a safe assumption on what personality factor from this experience? Find the length of the third side. If necessary, write in simplest radical form. Select the best translation for the following phrase: I don't know anything. O Muy bien, gracias. O Me alegro verles hoy. O Cmo anda? O No s nada. 16. What keeps the climate of Europe warmer than that of Canada?a. the westerly windsb. the Mediterranean Seac. its large desertd. the Alps Giving in 400dm3 of gas collected at 20degree Celsius and 720mmHg. What is the volume at s.t.p? Which of the following elements has the most electrons?RubidiumCopperZirconiumSeleniumArgon alanna was annoyed because several guests at her dinner party showed up without letting her know they would be attending, and she had to adjust her plans. these guests violated a . a. folkway b. more c. taboo d. sanction