Heights of adults in a town are normal with mean 160 cm and standard deviation 5 cm. What percentage are between 155 cm and 170 cm? (Take $P(0 < Z < 1) = 0.3413$ and $P(0 < Z < 2) = 0.4772$ .)

13.59%Correct answerYour answer68.26%Correct answerYour answer80.85%Correct answerYour answer81.85%Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer D

Correct answer: D

Worth noting

68.26% is $-1 < Z < 1$ , which stops at 165 cm.

Ten questions from Normal Distribution, at your own pace.

Ten questions from Normal Distribution, at your own pace.

Heights of adults in a town are normal with mean 160 cm and standard deviation 5 cm. What percentage are between 155 cm and 170 cm? (Take P(0<Z<1)=0.3413P(0 < Z < 1) = 0.3413P(0<Z<1)=0.3413 and P(0<Z<2)=0.4772P(0 < Z < 2) = 0.4772P(0<Z<2)=0.4772.)