Use the normal distribution of IQ scores, which has a mean of 75 and a standard deviation of 19, and the following table with the standard scores and percentiles for a normal distribution to find the indicated quantity. Click the icon to view the table. - X Data table Percentage of scores less than 122.5 is%. (Round to two decimal places as needed.) Standard Scores and Percentiles for a Normal Distribution (cumulative values from the left) Full data set Standard score % Standard score - 3.0 0.13 0.1 53.98 -2.5 0.62 0.5 69.15 - 2 2.28 0.9 81.59 -1.5 6.68 1 84.13 - 1 15.87 1.5 93.32 - 0.9 18.41 2 97.72 - 0.5 30.85 2.5 99.38 -0.1 46.02 3 99.87 0 50.00 3.5 99.98 Print Done Statcrunch