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

Question

Quizplus · Accepted Answer

The mean of a binomial distribution is given by the formula μ = np, where n is the number of trials (in this case, 50 voters) and p is the probability of success (in this case, 0.9 or 90%). Therefore, the mean is 50 * 0.9 = 45.

Tabulation of a Strike Vote Showed That 90% of Those