IF SAT scores have approximately a normal distribution with the mean being 550 and standard deviation of 90. How can I calculate the SAT scores of the 95th percentile?
Thank you
2 answers
http://davidmlane.com/hyperstat/z_table.html
check AREA box
put in
Area = .05
result is 95 % are below 698
put in
Area = .05
result is 95 % are below 698