| 128633 | Measures of the Location of the Data · Exercise 1 | Medium | |
| 128635 | Measures of the Location of the Data · Exercise 3 | Medium | |
| 128637 | Measures of the Location of the Data · Exercise 5 | Medium | |
| 128639 | Measures of the Location of the Data · Exercise 7 | Medium | |
| 128641 | Measures of the Location of the Data · Exercise 9 | Medium | |
| 128643 | Measures of the Location of the Data · Exercise 11 | Medium | |
| 128669 | Measures of the Center of the Data · Exercise 2 | Medium | |
| 128671 | Measures of the Center of the Data · Exercise 4 | Medium | |
| 128681 | Skewness and the Mean, Median, and Mode · Exercise 1 | Medium | |
| 128683 | Skewness and the Mean, Median, and Mode · Exercise 3 | Medium | |
| 128685 | Skewness and the Mean, Median, and Mode · Exercise 5 | Medium | |
| 128688 | Skewness and the Mean, Median, and Mode · Exercise 17 | Medium | |
| 128690 | Skewness and the Mean, Median, and Mode · Exercise 19 | Medium | |
| 128701 | Measures of the Spread of the Data · Exercise 3 | Medium | |
| 128703 | Measures of the Spread of the Data · Exercise 5 | Medium | |
| 128704 | Measures of the Spread of the Data · Exercise 6 | Medium | |
| 128710 | Measures of the Spread of the Data · Exercise 12 | Medium | |
| 128712 | Measures of the Spread of the Data · Exercise 14 | Medium | |
| 128714 | Measures of the Spread of the Data · Exercise 16 | Medium | |
| 128716 | Measures of the Spread of the Data · Exercise 18 | Medium | |
| 130293 | Measures of the Spread of the Data · Exercise 6 | Medium | |
| 130299 | Measures of the Spread of the Data · Exercise 12 | Medium | |
| 130300 | Measures of the Spread of the Data · Exercise 13 | Medium | |
| 130304 | Measures of the Spread of the Data · Exercise 17 | Medium | |
| 130307 | Measures of the Spread of the Data · Exercise 21 | Medium | |
| 130925 | Measures of the Location of the Data · Exercise 7 | Medium | |
| 130927 | Measures of the Location of the Data · Exercise 11 | Medium | |
| 130935 | Measures of the Location of the Data · Exercise 19 | Medium | |
| 130949 | Measures of the Center of the Data · Exercise 9 | Medium | |
| 130960 | Measures of the Spread of the Data · Exercise 7 | Medium | |
| 130962 | Measures of the Spread of the Data · Exercise 9 | Medium | |
| 130963 | Measures of the Spread of the Data · Exercise 10 | Medium | |
| 130969 | Measures of the Spread of the Data · Exercise 16 | Medium | |
| 130971 | Measures of the Spread of the Data · Exercise 18 | Medium | |
| 130973 | Measures of the Spread of the Data · Exercise 20 | Medium | |
| 130975 | Measures of the Spread of the Data · Exercise 22 | Medium | |
| 130981 | Measures of the Spread of the Data · Exercise 30 | Medium | |
| 128676 | Measures of the Center of the Data · Exercise 9 | Medium | |
| 128677 | Measures of the Center of the Data · Exercise 11 | Medium | |
| 128679 | Measures of the Center of the Data · Exercise 13 | Medium | |
| 128699 | Measures of the Spread of the Data · Exercise 1 | Medium | |
| 128708 | Measures of the Spread of the Data · Exercise 10 | Medium | |
| 128718 | Measures of the Spread of the Data · Exercise 20 | Medium | |
| 128725 | Measures of the Spread of the Data · Exercise 28 | Medium | |
| 130267 | Sigma Notation and Calculating the Arithmetic Mean · Exercise 2 | Medium | |
| 130268 | Sigma Notation and Calculating the Arithmetic Mean · Exercise 3 | Medium | |
| 130269 | Sigma Notation and Calculating the Arithmetic Mean · Exercise 4 | Medium | |
| 130270 | Sigma Notation and Calculating the Arithmetic Mean · Exercise 5 | Medium | |
| 130271 | Sigma Notation and Calculating the Arithmetic Mean · Exercise 6 | Medium | |
| 130272 | Sigma Notation and Calculating the Arithmetic Mean · Exercise 7 | Medium | |