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(b) Find the mean and standard deviation of this probability distribution. Find the expected number of people in this sample who are illiterate. We will first find the mean. Recall that the mean of a binomial distribution is given by u = np. We previously determined that n = 6 and p = 0.2. Substitute the values for n and p into the formula and simplify to find u. 6 (0.2) 1.2 people Step 4 We will now find the standard deviation. Recall that o = vnpg is the standard deviation for the random variable r, where g = 1 - p is the probability of failure on a single trial. We previously determined that n = 6 and p = 0.2. So, Substitute the values for n, p and q into the formula and round the final answer to two decimal places. o = v npa - v 6(0.2) people %3D

(b) Find the mean and standard deviation of this probability distribution. Find the expected number of people in this sample who are illiterate. We will first find the mean. Recall that the mean of a binomial distribution is given by u = np. We previously determined that n = 6 and p = 0.2. Substitute the values for n and p into the formula and simplify to find u. 6 (0.2) 1.2 people Step 4 We will now find the standard deviation. Recall that o = vnpg is the standard deviation for the random variable r, where g = 1 - p is the probability of failure on a single trial. We previously determined that n = 6 and p = 0.2. So, Substitute the values for n, p and q into the formula and round the final answer to two decimal places. o = v npa - v 6(0.2) people %3D

MATLAB: An Introduction with Applications
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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(b) Find the mean and standard deviation of this probability distribution. Find the expected number of people in this sample who are illiterate. We will first find the mean. Recall that the mean of a binomial distribution is given by u = np. We previously determined that n = 6 and p = 0.2. Substitute the values for n and p into the formula and simplify to find u. 6 (0.2) 1.2 people Step 4 We will now find the standard deviation. Recall that o = vnpg is the standard deviation for the random variable r, where g = 1 - p is the probability of failure on a single trial. We previously determined that n = 6 and p = 0.2. So, Substitute the values for n, p and q into the formula and round the final answer to two decimal places. o = v npa - v 6(0.2) people %3D
Transcribed Image Text:(b) Find the mean and standard deviation of this probability distribution. Find the expected number of people in this sample who are illiterate. We will first find the mean. Recall that the mean of a binomial distribution is given by u = np. We previously determined that n = 6 and p = 0.2. Substitute the values for n and p into the formula and simplify to find u. 6 (0.2) 1.2 people Step 4 We will now find the standard deviation. Recall that o = vnpg is the standard deviation for the random variable r, where g = 1 - p is the probability of failure on a single trial. We previously determined that n = 6 and p = 0.2. So, Substitute the values for n, p and q into the formula and round the final answer to two decimal places. o = v npa - v 6(0.2) people %3D
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