Question

Companies who design furniture for elementary school classrooms produce a variety of sizes for kids of different ages. Suppose the heights of kindergarten children can be described by a Normal model with a mean of 39.2 inches and standard deviation of 1.9inches.

​a) What fraction of kindergarten kids should the company expect to be less than 39 inches​ tall?

About __ % of kindergarten kids are expected to be less than 39 inches tall.

Answer 1

Answer:

Given that:

Suppose the heights of kindergarten children can be described by a Normal model with a mean of 39.2 inches and standard deviation of 1.9 inches.

mean = 39.2

standard deviation =1.9

​a) What fraction of kindergarten kids should the company expect to be less than 39 inches​ tall?

Using z table

Probability = 0.4562

About 45.62% Kindergarten Kids are expected.