To one decimal place, what percentage of the area under the normal curve lies between #+-# 2 standard deviations of #mu#?

1 Answer
Shwetank Mauria
Nov 9, 2016

Area under the normal curve between #+-2# standard deviation is #95.45%#.

Explanation:

Area under the normal curve

between #+-1# standard deviation is #68.27%#

between #+-2# standard deviation is #95.45%#

between #+-3# standard deviation is #99.73%#

http://www.intmath.com/counting-probability/14-normal-probability-distribution.php

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