To identify:The probability that a person chosen at random is under 20 or above 60.Population About 30% of the US population is under 20 years old. About 17% of the population is over 60.
Given information:
A population in which 30% of the US population is under 20 yrsand about 17% of the population is over 60.
Explanation:
Consider the information.
Since both events are mutually exclusive events as both cannot happen at the same time.
Person cannot be under 20 and over 60 simultaneously.
For mutually exclusive events C and D
That means,
Since the statement of the solution is.
Substituting these values in equation (1) and solved as
Hence
Chapter 11 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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