The scores of 1 1 students on a final exam are 70, 55, 61, 80, 85, 72, 65, 30, 74, 68, and 84. Use technology such as wolfram alpha or stapplet to answer the following. To get full credit, answer questions numerically rounded to two (2) decimal places where necessary 8. What is the mean final exam score? 9. What is the median final exam score? 10. What is the sample standard deviation? 1 1. What is the interquartile range (IQR)? 12. The minimum score of 30 is determined to be an outlier. Which combination of center and spread are the best summary statistics for this set of data? (A) Mean and median (B) Mean and standard deviation (C) Median and IQR (D) Median and standard deviation (E) Standard deviation and IQR