The random variable x represents the number of boys in a family of three children. Assuming that boys and girls are equally likely, find the mean and standard deviation for the random variable xP(x)0.1250.3752.0.3750.1253.OA. mean: 1.50; standard deviation: 0.76OB. mean: 2.25, standard deviation: 0.76OC. mean: 1.50; standard deviation: 087OD. mean 2.25, standard deviation 0 87Click to select your anewerType here to search4. Find the mean of the binomial distribution for which n= 90 and p = 0.2. Round the answer to the nearest hundredth, as needed.O A. 90.00O B. 18.00O C. 3.79O D. 45.00Click to select your answer.O Type here to search近

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Description: The random variable x represents the number of boys in a family of three children. Assuming that boys and girls are equally likely, find the mean and standard deviation for the random variable xP(x)0.1250.3752.0.3750.1253.OA. mean: 1.50; standard de

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The random variable x represents the number of boys in a family of three children. Assuming that boys and girls are equally likely, find the mean and standard deviation for the random variable x
P(x)
0.125
0.375
2.
0.375
0.125
3.
OA. mean: 1.50; standard deviation: 0.76
OB. mean: 2.25, standard deviation: 0.76
OC. mean: 1.50; standard deviation: 087
OD. mean 2.25, standard deviation 0 87
Click to select your anewer
Type here to search
4.

Find the mean of the binomial distribution for which n= 90 and p = 0.2. Round the answer to the nearest hundredth, as needed.
O A. 90.00
O B. 18.00
O C. 3.79
O D. 45.00
Click to select your answer.
O Type here to search
近

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