if height of 300 students is normally distributed with mean 68.00 inch and standard deviation 3.0 in ch. how manystudents have heights greater than 72 inches?

Answer 1

using my favourite webpage for this topic ...
http://davidmlane.com/hyperstat/z_table.html
enter your mean and SD
click on above and enter 72 to get
.0912

so number of students = .0912(300)
= appr 27

Answer 2

solve

Answer 3

mean 68.00 stanrd deviation 3