Use the normal distribution of IQ scores, which has a mean of 105 and a standard deviation of 18, 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 4 Percentage of scores greater than 60 is Standard Scores and Percentiles for a Normal Distribution (Round to two decimal places as needed.) Full data set Standard score Standard score - 3.0 0.13 53.98 - 2.5 0.62 0.5 69.15 2.28 81.59 - 1.5 6.68 84.13 15.87 93.32 -0.9 18.41 97.72 -0.5 30.85 99.38 - 0.1 46.02 99.87 50.00 3.5 99.98