Walleye is a common game fish. Adult walleye have a length with a mean of 44 cm and a standard deviation of 4 cm and the distribution of lengths is approximately Normal. What fraction of walleye are longer than 52 cm in length?

1 answer

52 is 2 std above the mean of 44.
So, look up Z=2 in your table, and subtract that from 1.

Or, mosey on over to

http://davidmlane.com/hyperstat/z_table.html

and enter 2 in the "Above" box and it will calculate the Z value and show the tail of the graph.