Jeffrey D.

asked • 02/23/16


In  a  study  of bumblebee  bats,  one  of  the  world’s  smallest  mammals,  the weights were normally distributed, with a mean of 2.0 grams and a standard deviation  of  0.25  gram.  Find  the  probability  that  a  randomly  selected  bat from the study weighs
(a)  between 1.8  grams and 2.2  grams?

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