Chapter 12.7, Problem 23P

A meteorologist says that the probability of rain today is 35%. What is the probability that it will not rain?

To determine

Find the probability that it will not rain.

Answer to Problem 23P

0.65

Explanation of Solution

Given:

A meteorologist says that the probability of rain today is 35%.

Formula Used :

  $\text{P(E) = }\frac{\text{number of favourable outcomes of E}}{\text{total number of outcomes}}$

P(E) + P(not E) = 1

Calculation:

Probability of raining = 35% = 0.35

Probability of not raining = 1- Probability of raining =1 − 0.35 = 0.65