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 12 of the eligible voters sampled will vote in the next presidential election.
A) 0.772
B) 0.228
C) 0.392
D) 0.887
E) 0.608

Question

Quizplus · Accepted Answer

The probability of more than 12 eligible voters voting in the next presidential election is 0.772. This is found by using a binomial probability table with n = 20 and p = 0.7. The probability of exactly 12 eligible voters voting is 0.228.

A Recent Study Suggested That 70% of All Eligible Voters