In a poll conducted by a survey firm, 84% of respondents said that their jobs were sometimes or always stressful. Ten workers are chosen at random. What is the probability that exactly 6 of them Find their jobs stressful?
A) 0.0018
B) 0.0483
C) 0.9517
D) 0.0012

Question

Quizplus · Accepted Answer

This is a binomial probability problem with n=10 and p=0.84.
The probability of exactly 6 workers finding their jobs stressful is:
P(X=6) = (10 choose 6) * 0.84^6 * 0.16^4
Using a calculator or software, we get:
P(X=6) = 0.0483
Therefore, the best choice is B.

In a Poll Conducted by a Survey Firm, 84% of Respondents