i need formula!!!!

According to data for apopulation, 3-year-old boys have a mean height of 38 inches and a standard deviation of 2

2 inches. Assume the distribution is approximately Normal. Complete parts a and b.

a.

Find the percentile measure for a height of 41 inches for a3-year-old boy.

A height of 41

41 inches corresponds to the ?

(Round down to the nearest percentile asneeded.)

b.

If this3-year-old boy grows up to be a man with a height at the samepercentile, what will his heightbe? Use a population mean of 70 inches and a population standard deviation of 3 inches.His height will be nothing

(Round to the nearest tenth asneeded.)