Solve the problem.
-The probability that a person has immunity to a particular disease is 0.8. Find the mean number who have immunity in samples of size 25.
A)0.8
B)5.0
C)20.0
D)12.5

Question

Quizplus · Accepted Answer

The mean number of people who have immunity in samples of size 25 is calculated by multiplying the probability of immunity (0.8) by the sample size (25), which equals 20.0.

Solve the Problem. -The Probability That a Person Has Immunity to a Particular