Question

The experimental probability of hearing thunder on any given in Florida is 25%. Out of 1 year (365) days ), about how many days can Floridians predict to hear thunder?

A 91
B 15
C 68
D 25

Answer 1

If the experimental probability of hearing thunder is 25% the probability is equal to 1/4. So in 365 days you would expect to hear thunder on:

365(1/4)=91.25 days

Which they obviously rounded to just 91 days.

Answer 2

The answer is A.)
91/365 = 25/100
To be exact, 91.25