Mathematics, 07.01.2020 01:31 ComicSans10

The army reports that the distribution of head circumference among sale soldiers is approximately normal with mean 22.8 inches and standard deviation 1.1 inches.

a. a male soldier whose head circumference is 23.9 inches would be at what
percentile?

b. the army's helmet supplier regularly stocks helmets that fit soldiers with head
circumferences between 20 and 26 inches. anyone with a head circumference
outside that interval requires a customized helmet order. what percent of soldiers
require custom helmets?

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