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The ages of people at a concert are normally distributed with a mean of 24 years and a standard deviation of 3.2
years.
What is the age of a concert attendee with a z-score of -1.32
Enter your answer, rounded to the nearest tenth, in the box.
years

Answer 1

19.8 years old

Explanation:

If Z=(x-μ)/σ where Z=-1.32, σ=3.2, and μ=24, then:

-1.32=(x-24)/3.2

-4.224=x-24

19.776=x

19.8

Therefore, the age of a concert attendee with a z-score of -1.32 is 19.8 years old.