Tabulation of a strike vote showed that 90% of those voting cast their ballot in favour of strike action. You take a sample of 50 voters. Assume this to be a binomial distribution. What is the mean for this distribution?
A) 450
B) 90
C) 45
D) There is no mean for this type of distribution
E) None of the choices are correct.

Question

Quizplus · Accepted Answer

The mean of a binomial distribution is calculated as n * p, where n is the number of trials (50 voters) and p is the probability of success (0.9). Thus, the mean is 50 * 0.9 = 45.

Tabulation of a Strike Vote Showed That 90% of Those