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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) O 0.125 0.375 2. 0.375 3. 0.125 OA mean: 1.50, standard deviation: 0.76 OB. mean: 2.25, standard deviation: 0.76 Oc. mean 1.50, standard deviation: 0.87 OD. mean 2.25, standard deviation 087

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) O 0.125 0.375 2. 0.375 3. 0.125 OA mean: 1.50, standard deviation: 0.76 OB. mean: 2.25, standard deviation: 0.76 Oc. mean 1.50, standard deviation: 0.87 OD. mean 2.25, standard deviation 087

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 12PPS
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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.
Transcribed Image Text: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
Transcribed Image Text: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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