This test: 20 point(s) @ possible This question: 1 point(s) possible 5 Test: Exam #1 Question 14 of 20 Submit test The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range, mean, variance, and standard deviation of the sample data set. 12, 17,23, 14,18,16,20,18, 15,17 :1- The range is I. (Simplify your answer.) The mean is |:. (Simplify your answer. Round to the nearest tenth as needed.) The variance is |:. (Simplify your answer. Round to the nearest tenth as needed.) The standard deviation is :l. (Simplify your answer. Round to the nearest tenth as needed.)