Support ? Question Completion Status: QUESTION 10 10) If the mean of the set of data values is 125 and the standard deviation is 15, find the percentile rank of 100 O a..0477% O b.5% O c. none of the choices O d. 4.77% QUESTION 11 11) According to the latest computer internet usage survey of 1500 high school students the amount of social time per day a student spends on the internet is approximately normally distributed with a mean of 210 minutes and a standard deviation of 45 minutes. Determine the proportion of students that spend less than 176 minutes on the internet ( 4 decimal places) O a. none of the choices O b. .2250 O c. .1500 O d. .7750 QUESTION 12 12) Referring to question 11) find the number of students who spend more than 120 minutes on the internet (nearset whole) O a. 1465 O b. 1500 O c. 977 O d. none of the choices QUESTION 13 13) Referring to the information in question 11, find the data value that represents the first quartile (round to the nearest whole number) O a. 140 O b. none of the choices O c.240 O d. 180 QUESTION 14 14) Given the following set of data values : 23, 19, 20, 21, 18, 19, 22, 24, 26, Determine the population mean for this set (nearest tenth) O a.23.3 O b. none of the choices O c.21.3 O d. 192.0 QUESTION 15 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All