statistics
posted by Ann .
Height of children in kindergarten described by normal mode with mean 39.2 inches and standard deviation of 1.9 inches.
What percent of children can expect to be less than 38 inches tall?

enter your data into
http://davidmlane.com/hyperstat/z_table.html
click on "below"
you should get 0.2638
so 26.38 % are less than 38 inches tall