The probability of an outcome that lies within 68% of the mean is a good indicator that it lies in which standard deviation?
A. There is a probability that the outcome is within 1 standard deviation of the mean.
B. There is a probability that the outcome is within 3 standard deviations of the mean.
C. There is a probability that the outcome is within 2 standard deviations of the mean.
D. Standard deviations are not reliable, so the probability cannot be determined.

Answer:

D

Step-by-step explanation:

The first term is when x = 0, so 15.

Then you decrease by 4 every time to get 15,11,7,3,-1

Answer:B trust me i already did it

Step-by-step explanation:poooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

Answer:

2xy(8x+5)

Step-by-step explanation:

take "2xy" as a highest common factor and divide the numbers in the question with the factor

Answer:

2xy(8x+5)

Step-by-step explanation:

'2xy' is the HCF of both of the terms

The probability of x taking on a value between 75 to 90 is 0.25.

Given that x is a continuous random variable uniformly distributed between 65 and 85.To find the probability that x lies between 75 and 90, we need to find the area under the curve between the values 75 and 85, and add to that the area under the curve between 85 and 90.

The curve represents a rectangular shape, the height of which is the maximum probability. So, the height is given by the formula height of the curve = 1/ (b-a) = 1/ (85-65) = 1/20.Area under the curve between 75 and 85 is = (85-75) * (1/20) = (10/20) = 0.5Area under the curve between 85 and 90 is = (90-85) * (1/20) = (5/20) = 0.25.

To know more about variable visit:

https://brainly.com/question/15740935

#SPJ11

Answer: you are correct. The answer is the first option and if you don't believe me look at my explanation.

Step-by-step explanation: Since a ratio can also be written as a fraction, 3:12 = 3/12. So what you do is simplify 3/12 to get 1/4 which equals 1:4.

Answer:

I think that it may be 33

Because, you see 15-9=6

so you do 20-9=11

Then you do 25-9=16

add them all together to get 33 so i think that's the perimeter

I am really not sure if this is correct...i'm kinda bad at stuff like this

Answer:

1/9 = 0.111

2/9 = 0.222

Step-by-step explanation:

1/9 = 0.111

2/9 = 0.222

Answer:

Step-by-step explanatioN

1/9 = WE DIVIDE 1 ÷  9 WE GET 0.1111111111

0.1111111111 TO ONE SIGNIFICANT FIGURE = 0.1                  

    TWO SIG.FIG = 0.11                  T

HREE SIG.FIG 0.111

2/9= WE DIVIDE 2 BY 9 WE GET 0.22222222

SO WE ROUND TO ONE SIG .FIG.

RATE ME AND THANK ME

Answer:

When you reflect a point across the line y = x, the x-coordinate and y-coordinate change places. If you reflect over the line y = -x, the x-coordinate and y-coordinate change places and are negated (the signs are changed).

Hope this helps :)

The r is \begin{bmatrix}207 & -30 & 130 \\ 690 & -104 & 206 \\ 1502 & -290 & 490 \end{bmatrix}.

Given matrices are:

A = \begin{bmatrix}1 & -2 & 1 \\ 11 & 4 & 1 \\ 3 & 1 & 3 \end{bmatrix}, B = \begin{bmatrix}0 & -1 & 2 \\ 2 & 2 & 2 \\ 3 & 1 & 1 \end{bmatrix}, C = \begin{bmatrix}1 & 1 & 2 \\ 2 & 1 & 1 \\ 2 & 3 & 1 \end{bmatrix}, D = \begin{bmatrix}0 & 1 & 3 \\ 2 & 2 & 2 \\ 3 & 1 & 0 \end{bmatrix}We are asked to find 3(BTD) + 4CA^2$ .

Here, we need to first find the individual matrices and then find the final matrix by using the given formula. Now, let us calculate each term one by one. First of all, let's find BTD.We have B = \begin{bmatrix}0 & -1 & 2 \\ 2 & 2 & 2 \\ 3 & 1 & 1 \end{bmatrix}, D = \begin{bmatrix}0 & 1 & 3 \\ 2 & 2 & 2 \\ 3 & 1 & 0 \end{bmatrix}Multiplying the above matrices, we get \begin{aligned} BTD &= \begin{bmatrix}0 & -1 & 2 \\ 2 & 2 & 2 \\ 3 & 1 & 1 \end{bmatrix}\begin{bmatrix}0 & 1 & 3 \\ 2 & 2 & 2 \\ 3 & 1 & 0 \end{bmatrix}\\ &= \begin{bmatrix}(0)(0) + (-1)(2) + (2)(3) & (0)(1) + (-1)(2) + (2)(1) & (0)(3) + (-1)(2) + (2)(0) \\ (2)(0) + (2)(2) + (2)(3) & (2)(1) + (2)(2) + (2)(1) & (2)(3) + (2)(1) + (2)(0) \\ (3)(0) + (1)(2) + (1)(3) & (3)(1) + (1)(2) + (1)(1) & (3)(3) + (1)(1) + (1)(0) \end{bmatrix} \\ &= \begin{bmatrix}4 & -2 & -2 \\ 12 & 8 & 6 \\ 5 & 6 & 10 \end{bmatrix} \end{aligned}

Next, let's calculate A^2. We have A = \begin{bmatrix}1 & -2 & 1 \\ 11 & 4 & 1 \\ 3 & 1 & 3 \end{bmatrix}$$Multiplying the above matrix by itself, we get \begin{aligned} A^2 &= AA\\ &= \begin{bmatrix}1 & -2 & 1 \\ 11 & 4 & 1 \\ 3 & 1 & 3 \end{bmatrix}\begin{bmatrix}1 & -2 & 1 \\ 11 & 4 & 1 \\ 3 & 1 & 3 \end{bmatrix}\\ &= \begin{bmatrix}(1)(1) + (-2)(11) + (1)(3) & (1)(-2) + (-2)(4) + (1)(1) & (1)(1) + (-2)(1) + (1)(3) \\ (11)(1) + (4)(11) + (1)(3) & (11)(-2) + (4)(4) + (1)(1) & (11)(1) + (4)(1) + (1)(3) \\ (3)(1) + (1)(11) + (3)(3) & (3)(-2) + (1)(4) + (3)(1) & (3)(1) + (1)(1) + (3)(3) \end{bmatrix} \\ &= \begin{bmatrix}1 & -4 & 2 \\ 147 & -27 & 14 \\ 17 & -5 & 13 \end{bmatrix} \end{aligned} Now, we need to find CA^2.

We have C = \begin{bmatrix}1 & 1 & 2 \\ 2 & 1 & 1 \\ 2 & 3 & 1 \end{bmatrix}, A^2 = \begin{bmatrix}1 & -4 & 2 \\ 147 & -27 & 14 \\ 17 & -5 & 13 \end{bmatrix}Multiplying the above matrices, we get \begin{aligned} CA^2 &= \begin{bmatrix}1 & 1 & 2 \\ 2 & 1 & 1 \\ 2 & 3 & 1 \end{bmatrix}\begin{bmatrix}1 & -4 & 2 \\ 147 & -27 & 14 \\ 17 & -5 & 13 \end{bmatrix}\\ &= \begin{bmatrix}(1)(1) + (1)(147) + (2)(17) & (1)(-4) + (1)(-27) + (2)(-5) & (1)(2) + (1)(14) + (2)(13) \\ (2)(1) + (1)(147) + (1)(17) & (2)(-4) + (1)(-27) + (1)(-5) & (2)(2) + (1)(14) + (1)(13) \\ (2)(1) + (3)(147) + (1)(17) & (2)(-4) + (3)(-27) + (1)(-5) & (2)(2) + (3)(14) + (1)(13) \end{bmatrix} \\ &= \begin{bmatrix}167 & -12 & 42 \\ 166 & -36 & 29 \\ 446 & -79 & 45 \end{bmatrix} \end{aligned}

Finally, we can find the value of 3(BTD) + 4CA^2. We have $$3(BTD) + 4CA^2 = 3\begin{bmatrix}4 & -2 & -2 \\ 12 & 8 & 6 \\ 5 & 6 & 10 \end{bmatrix} + 4\begin{bmatrix}167 & -12 & 42 \\ 166 & -36 & 29 \\ 446 & -79 & 45 \end{bmatrix} = \begin{bmatrix}207 & -30 & 130 \\ 690 & -104 & 206 \\ 1502 & -290 & 490 \end{bmatrix}

Therefore, $3(BTD) + 4CA^2 = \begin{bmatrix}207 & -30 & 130 \\ 690 & -104 & 206 \\ 1502 & -290 & 490 \end{bmatrix}.

The required answer is \begin{bmatrix}207 & -30 & 130 \\ 690 & -104 & 206 \\ 1502 & -290 & 490 \end{bmatrix}.

Learn more about matrices in the link:

https://brainly.in/question/54103026?source=archive

#SPJ11

Answer: quadrilateral is inscribed in a circle , then supplementary . " its opposite angles are Given : Quadriateral ABCD is inscribed in OE Prove : ABC

Step-by-step explanation:

Answer:

14 +3 - 17

6-4 = 2

1 -9 = -8

Step-by-step explanation:

Answer:

14+3= 17

6-4= 2

1 -9= -8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

since B. Crosses through the middle, we can see that 4x+1 = 33.

simplest way:

Easily, multiply 4 multiple times till you receive 32.

so, multiply 4 x 8 to receive 32.

Then add 1 to 32.

33.

Answer 8. because 4x8+1=33.

From the expression we can see that it is translated 3 units downwards from the origin.

Answer:

~235.8

Step-by-step explanation:

200^2 +125^2= distance traveled^2

55625= distance traveled^2

235.849528301

Answer:

19 degrees

Step-by-step explanation:

61-22=39 for QOR

QOS 58- QOR39=19

One of the biggest ethical issues many marketers face today relates to consumer privacy and data protection.

In today's digital age, marketers have access to vast amounts of consumer data, including personal information and online behavior. The ethical issue arises when marketers collect, use, and share this data without adequate transparency, consent, or protection of consumer privacy. It raises concerns about invasion of privacy, unauthorized data sharing, and potential misuse of personal information for targeted advertising or other purposes.

Marketers are increasingly under scrutiny to ensure ethical practices in data collection, storage, and usage, balancing the need for effective marketing strategies with respect for individual privacy rights. Failure to address these ethical concerns can lead to loss of trust, reputational damage, and legal consequences for companies. Therefore, marketers must navigate these ethical challenges by adopting transparent and responsible data practices, respecting consumer choices, and implementing robust privacy and security measures.

To know more about ethical issues,

https://brainly.com/question/32499544

#SPJ11

Answer:

you were close it was 12.56

Step-by-step explanation:

sorry...

Answer:

Convert to scientific notation. 1.) 2,800 2.8*10%. 2.) 742,00p, 7.42 x 105. 3. ... When translating scientific notation to standard form, you need to decide which way to move the decimal point. If the exponent is negative, you move the decimal point to the. -left ... We should move the decimal point 3 places to the left.

Step-by-step explanation:

Answer:

304.2

Step-by-step explanation:

3.042 * 100 = 304.2

Answer:

the correct answer is B

Step-by-step explanation:

Answer:

If it’s reflected over y axis, your x- axis points will change so your answer is D

Step-by-step explanation:

The probability that the patient is indeed infected is 83.3% (accurate to at least 4 decimal places).

Let P(A) be the probability that the patient is infected and P(B) be the probability that the test result is positive.P(A) = 0.05 (Given)P(B|A) = 0.99 (Given)P(B|not A) = 0.10 (Given)Now, we have to find P(A|B). We can find this using Bayes Rule.

Bayes Rule: P(A|B) = P(B|A)P(A) / [P(B|A)P(A) + P(B|not A)P(not A)] substitute the values and calculate:P(A|B) = (0.99)(0.05) / [(0.99)(0.05) + (0.10)(0.95)]≈ 0.8333So, the probability that the patient is indeed infected is 83.3% (accurate to at least 4 decimal places).

See more about probability at: https://brainly.com/question/24756209

#SPJ11

Answer:

Third option

Step-by-step explanation:

Given the following question where...

\(180 = a1+a2+a3\)

A triangle adds up to 180 degrees

50 + 120 = 170 + 10 = 180

The measurement of the third angle is 10 degrees or the third option.

Hope this helps.

The probability that each of the balls will be; a) P( of the same color) = 0.08875. b) P ( of different color) = 0.247678

Probability refers to a possibility that deals with the occurrence of random events.

The probability of all the events occurring need to be 1.

The formula of probability is defined as the ratio of a number of favorable outcomes to the total number of outcomes.

The Number of red balls = 5

The number of blue balls = 6

The number of green balls = 8

The Total number of balls = 5 + 6 + 8 = 19

Then with three balls selected at random, by using combination method ;

nCr = n!/(n-r)!r!

a) P( of the same color) = 5C3 + 6C3 + 8C3 / 19C3

=  86/969 = 0.08875

b) P ( of different color) = 5C1 X 6C1 X 8C1 /19C3

= 240/969 = 0.247678

Hence, The probability that each of the balls will be; a) P( of the same color) = 0.08875. b) P ( of different color) = 0.247678

Learn more about probability here;

https://brainly.com/question/11234923

#SPJ1

Answer:

Step-by-step explanation:

4x(3x-7)-19x2

4x*3x=12x

-7*-19 = 133 * 2 = 266

12x + 266

Don't Trust This I suck at math, but I am confident that is the answer. It's either that or this: 12x-52. Trust me if you want. But I am warning you.

Answer:

The answer is

Step-by-step explanation:

4x(3x − 7) − 19x²

Expand the terms

We have

12x² - 28x - 19x²

Group like terms

That's

12x² - 19x² - 28x

Simplify the terms

We have the final answer as

Hope this helps you

Answer: 3z+6

Step-by-step explanation:

(3) (z+2)

(3) (z)+(3) (2)

3z+6

The statement is proven true by induction: for any positive integer n, the sum of (2i - 1)³ from i = 1 to n is equal to n²(2n² - 1).

To prove the statement using mathematical induction, we need to establish two conditions: the base case and the inductive step.

Base Case:

Let's start with the base case, where n = 1.

When n = 1, we have p₁ ∑ (2i - 1)³ = 1³ = 1.

On the right-hand side, we have 1 * (2 * 1² - 1) = 1.

Since the statement holds true for n = 1, the base case is satisfied.

Inductive Step:

Next, we assume that the statement holds true for some positive integer k, i.e., pₖ ∑ (2i - 1)³ = k²(2k² - 1).

Now, we need to prove that the statement also holds for n = k + 1, i.e., pₖ₊₁ ∑ (2i - 1)³ = (k + 1)²(2(k + 1)² - 1).

Starting with the left-hand side:

pₖ₊₁ ∑ (2i - 1)³ = (pₖ ∑ (2i - 1)³) + (2(k + 1) - 1)³

                 = k²(2k² - 1) + (2k + 1)³ (using the inductive hypothesis)

                 = 2k⁴ - k² + 8k³ + 12k² + 6k + 1

Simplifying the right-hand side:

(k + 1)²(2(k + 1)² - 1) = (k² + 2k + 1)(2k² + 4k + 2 - 1)

                         = 2k⁴ + 4k³ + 2k² + 4k³ + 8k² + 4k + 2k² + 4k + 2 - k² - 2k - 1

                         = 2k⁴ + 8k³ + 12k² + 6k + 1

Comparing the left-hand side and right-hand side, we can see that they are equal.

Therefore, by the principle of mathematical induction, the statement is proven true for all positive integers n.

To know more about mathematical induction refer here:

https://brainly.com/question/1333684#

#SPJ11

Answer:

0.90x + 1.45y

Step-by-step explanation:

You put the vaiable with the price and add the 2 together to get the total.

Have a great day!

Please rate!

Answer:

It would cost 3.6 dollars to by 4 bags of trail mix and 4.35 dollors to by 3 packs of chip

Step-by-step explanation:

Let x = number of bags of trail mix

Let y = number of bags of chips

0.90x + 1.45y = the total amount

( plot the number in )
0.90(4) + 1.45(3) = the total amount

( now multiply 0.90 by 4 and 1.45 by 3 )

3.6 + 4.35

Therefore it would cost 3.6 dollars to by 4 bags of trail mix and 4.35 dollars to by 3 packs of chips

Hope it helps!

The absolute minimum = -2√2.

The absolute maximum=  4.5

Consider f(t)=t√9-t on the interval (1,3].

Find the critical points: Find f'(t)=0.

f"(t) = 0

√9-t² d/dt t + t d/dt √9-t²=0

√9-t²  + t/2√9-t² (-2t)=0

9-t²-t²/√9-t²=0

9-2t²=0

9=2t²,   t²=9/2, t=±3/√2

since -3/√2∉  (1,3].

Therefore, the critical point in the interval  (1,3] is t= 3/√2.

Find the value of the function at t=1, 3/√2,3 to find the absolute maximum and minimum.

f(-1)=-1√9-1²

    = -√8 , =-2√2

f(3/√2)= 3/√2 √9-(3/√2)²

        = 3/√2 √9-9/2

      =3/√2 √9/2

     =9/2 = 4.5

f(3)= 3√9-3²

    = 3(0)

    =0

The absolute maximum is 4.5 and the absolute minimum is -2√2.

The absolute maximum point is the point at which the function reaches the maximum possible value. Similarly, the absolute minimum point is the point at which the function takes the smallest possible value.

A relative maximum or minimum occurs at an inflection point on the curve. The absolute minimum and maximum values ​​are the corresponding values ​​over the full range of the function. That is, the absolute minimum and maximum values ​​are bounded by the function's domain.

Learn more about Absolute minimum and maximum here:https://brainly.com/question/19921479

#SPJ4