According to a college survey, 22% of all students work full time. Find the standard deviation for the number of students who work full time in samples of size 16.
A) 1.9
B) 2.6
C) 1.7
D) 3.5

Question

Quizplus · Accepted Answer

The standard deviation for a binomial distribution is calculated using the formula: sqrt(n * p * (1-p)), where n is the sample size and p is the probability. Here, n = 16 and p = 0.22, so the standard deviation is sqrt(16 * 0.22 * 0.78) = 1.7.

According to a College Survey, 22% of All Students Work