Twelve brands of vanilla-flavored ice cream were used in this study. The data below represent the calories of one-half cup of each brand of vanilla-flavored ice cream: 325 230 262 197 131 290 150 182 111 150 148 164 Questions: a) Identify the variable in this data? Be specific. b) Compute the following rounded to 1 decimal place. Work is not needed. mean = S= Q1 = _ _ _ _ _, Q2 =_ _ _, Q3 = mode= c) Give a practical interpretation of the mean in this data set. d) Compute the interquartile range (IQR) and then check for outliers by computing the upper and lower outlier boundaries. State if any outliers are found and identify these values. (2pts) e) Which measure of average (mean, median, mode) should be used to represent the center of the above data set and explain why. (2pts)