Question 20 Please Answer ASAP

20. Dr. Simba's fourth-year class in animal biology has only 12 students. Their scores on the midterm examination are shown below. 50 71 65 54 84 69 82 67 52 52 86 85 a) Calculate the mean and median for these data. Compare these two statistics, b) Calculate the standard deviation and the semi-interquartile range. Compare these statistics and comment on what you notice. c) Which measure of spread is most suitable for describing this data set? Explain why