Suppose body mass index (BMI) varies approximately to the normal distribution in a population of boys...

Suppose body mass index (BMI) varies approximately to the normal distribution in a population of boys aged 2-20. A national survey analyzed the BMI for American adolescents in this age range and found the µ=20 and the σ=1.75.

A) What is the 25^th percentile of this distribution?

B) What is the z-score corresponding to finding a boy with at least a BMI 18.25?

C) What is the probability of finding a boy with at least this BMI, 18.25?

Solutions

Expert Solution

z - table given below

orchestra answered 1 year ago

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