A recent study suggested that 70% of all eligible voters will vote in the next presidential election. Suppose 20 eligible voters were randomly selected from the population of all eligible voters. Use a binomial probability table to find the probability that more than 10 but fewer than 16 of the 20 eligible voters sampled will vote in the next presidential election.
A) 0.780
B) 0.714
C) 0.845
D) 0.649

Question

Quizplus · Accepted Answer

The probability that more than 10 but fewer than 16 voters will vote is the sum of the probabilities for 11, 12, 13, 14, and 15 voters. Using a binomial probability table with n=20 and p=0.7, this sum is approximately 0.714.

A Recent Study Suggested That 70% of All Eligible Voters