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3 years ago

Question 10 of 2

1 answer:

8 0

Given the expression, 8x^2 + 1, the coefficient of the term 8x^2 is 8, while the constant is 1.

Therefore, the correct answer is D) 8.

Please mark my answer as the Brainliest if you find this helpful :)

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1. All of the following are true except B. A. A random variable represents a numerical value assigned to an outcome of a probabi

kolezko [41]

Answer:

The true statements are :

A. A random variable is a numerical description of the outcome of a statistical experiment.

B. In most applications, discrete random variables represent counted data.

C. In most applications, continuous random variables represent measured data.

Step-by-step explanation:

It is true statement that,

A. A random variable is a numerical description of the outcome of a statistical experiment.

B. In most applications, discrete random variables represent counted data.

C. In most applications, continuous random variables represent measured data.

The false statement is -

D. The expected value of a discrete random variable is equal to the standard deviation of the random variable.

Reason -

The mean value, or expected value, of a discrete random variable X is given by the following equation:

μ = E(x) = ∑ x p(x)

And

The variance of a discrete random variable is given by the following formula:

σ²=∑ (x−μ)² P(x)

And

The square root of the variance, or, in other words, the square root of σ², is the standard deviation of a discrete random variable :

σ = √σ²

6 0

3 years ago

Please help me with this please.

Keith_Richards [23]

Answer:

total number of miles driven

3 0

3 years ago

A ball is thrown into the air. The height h, in feet, of the ball can be modeled by the equation h= -16t^2 + 20t + 6, where t is

Alik [6]

Hello : let h =f(t)
the ball hit the ground if : f(t) =0
solve : -16t² + 20t + 6=0
Δ = b²-4ac ... a = -16 b= 20 c =6
Δ =(20)²-4(-16)(6) = 784 = 28²
t1 = (-20-28)/-32 = 48/32 =3/2
t2 =(-20+28) /-32 < 0 refused
conclusion : t=3/2

5 0

4 years ago

Find the slope of the line passing through the points (-2,7) and (-2,-4).

Lilit [14]

Since the two points have the same x value, this means the it is a vertical line. Vertical lines do not have a slope. This means that the answer is undefined

6 0

3 years ago

Read 2 more answers

A weight clinic recorded the weight lost (in pounds) by each client of a weight control clinic during the last year, and got the

borishaifa [10]

Answer:

Class interval ____, Frequency _ C/frequency

1 - 10 ____________ 1 _________ 1

11 - 20 ___________ 4 _________ 5

20 - 30 __________ 6 _________ 11

31 - 40 ___________3 _________ 14

41 - 50 ___________ 1 _________ 15

51 - 60 ___________ 1 _________ 16

Step-by-step explanation:

Given the data :

35, 26, 31, 17, 46, 30, 28, 21, 26, 34, 15, 27, 7, 18, 16, 57

Class interval ____, Frequency _ C/frequency

1 - 10 ____________ 1 _________ 1

11 - 20 ___________ 4 _________ 5

20 - 30 __________ 6 _________ 11

31 - 40 ___________3 _________ 14

41 - 50 ___________ 1 _________ 15

51 - 60 ___________ 1 _________ 16

The next to highest frequency group has a frequency of 4 and the highest frequency of 6

Total frequency, n = (1 + 4 + 6 + 3 + 1 + 1) = 16

5 0

3 years ago