Choose the one alternative that best completes the statement or answers the question.
-During July in Jacksonville, Florida, it is not uncommon to have afternoon thunderstorms. On average, 9.5 days have afternoon thunderstorms. What is the probability that a randomly selected day in July will not have a
Thunderstorm? Round to two decimal places, if necessary.
A) 0.91
B) 0.68
C) 0.31
D) 0.69

Question

Quizplus · Accepted Answer

There are 31 days in July. If 9.5 days have thunderstorms, then 31 - 9.5 = 21.5 days do not have thunderstorms. The probability of a day not having a thunderstorm is 21.5/31 = 0.69.

Choose the One Alternative That Best Completes the Statement or Answers