Question

A study collected a large dataset on collegiate football players scores on a cognitive reaction test. The dataset is approximately normal with a mean of 59 and a standard deviation 7. What proportion of college football players score higher than 50 on the test?

Answer 1

.3997 + 0.5 = 89.97%

Use your z table to get the area under the curve from 50 to 59. 50 is 1.28 std deviations from the mean. Then add the other 50%