### 18 Problems in Statistics

1. a.11 10 8 4 6 7 11 6 11 7 b.13 23 15 13 18 13 15 14 20 20 18 17 20 13 i. Find the range, mean, variance, and standard deviation of the population data set. ii. Without calculating, which data set has the greatest sample standard deviation? Which has the least sample standard deviation? Explain your reasoning. iii.