Assume that women's heights are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. If 90 women are randomly selected, find the probability that they have a mean height between 62.9 inches and 64.0 inches.

0.1739
0.0424
0.7248
0.9318

Question

Assume that women's heights are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. If 90 women are randomly selected, find the probability that they have a mean height between 62.9 inches and 64.0 inches.
 	
	0.1739
	0.0424
	0.7248
	0.9318

perl · Answer

Are you allowed to use a calculator?

anonymous · Answer

yes

perl · Answer

you can also use online normalcdf calculators , if you dont have a TI 83/84

perl · Answer

In the homescreen enter: 
 normalcdf( 62.9, 64 , 63.6, 2.5) 

I used normalcdf, which is 
2nd-> Vars -> 2:normalcdf

help_people · Answer

may someone please help me ?