| 128689 | Skewness and the Mean, Median, and Mode · Exercise 18 | Medium | |
| 128691 | Skewness and the Mean, Median, and Mode · Exercise 20 | Medium | |
| 128692 | Skewness and the Mean, Median, and Mode · Exercise 21 | Medium | |
| 128700 | Measures of the Spread of the Data · Exercise 2 | Medium | |
| 128702 | Measures of the Spread of the Data · Exercise 4 | Medium | |
| 128705 | Measures of the Spread of the Data · Exercise 7 | Medium | |
| 128706 | Measures of the Spread of the Data · Exercise 8 | Medium | |
| 128707 | Measures of the Spread of the Data · Exercise 9 | Medium | |
| 128709 | Measures of the Spread of the Data · Exercise 11 | Medium | |
| 128711 | Measures of the Spread of the Data · Exercise 13 | Medium | |
| 128713 | Measures of the Spread of the Data · Exercise 15 | Medium | |
| 128715 | Measures of the Spread of the Data · Exercise 17 | Medium | |
| 128717 | Measures of the Spread of the Data · Exercise 19 | Medium | |
| 128719 | Measures of the Spread of the Data · Exercise 21 | Medium | |
| 128720 | Measures of the Spread of the Data · Exercise 22 | Medium | |
| 128721 | Measures of the Spread of the Data · Exercise 23 | Medium | |
| 128722 | Measures of the Spread of the Data · Exercise 25 | Medium | |
| 128723 | Measures of the Spread of the Data · Exercise 26 | Medium | |
| 128724 | Measures of the Spread of the Data · Exercise 27 | Medium | |
| 128726 | Measures of the Spread of the Data · Exercise 29 | Medium | |
| 130265 | Measures of the Location of the Data · Exercise 18 | Medium | |
| 130266 | Sigma Notation and Calculating the Arithmetic Mean · Exercise 1 | Medium | |
| 130294 | Measures of the Spread of the Data · Exercise 7 | Medium | |
| 130295 | Measures of the Spread of the Data · Exercise 8 | Medium | |
| 130296 | Measures of the Spread of the Data · Exercise 9 | Medium | |
| 130298 | Measures of the Spread of the Data · Exercise 11 | Medium | |
| 130301 | Measures of the Spread of the Data · Exercise 14 | Medium | |
| 130302 | Measures of the Spread of the Data · Exercise 15 | Medium | |
| 130303 | Measures of the Spread of the Data · Exercise 16 | Medium | |
| 130305 | Measures of the Spread of the Data · Exercise 18 | Medium | |
| 130306 | Measures of the Spread of the Data · Exercise 20 | Medium | |
| 130308 | Measures of the Spread of the Data · Exercise 24 | Medium | |
| 130924 | Measures of the Location of the Data · Exercise 6 | Medium | |
| 130926 | Measures of the Location of the Data · Exercise 10 | Medium | |
| 130928 | Measures of the Location of the Data · Exercise 12 | Medium | |
| 130929 | Measures of the Location of the Data · Exercise 13 | Medium | |
| 130930 | Measures of the Location of the Data · Exercise 14 | Medium | |
| 130931 | Measures of the Location of the Data · Exercise 15 | Medium | |
| 130932 | Measures of the Location of the Data · Exercise 16 | Medium | |
| 130933 | Measures of the Location of the Data · Exercise 17 | Medium | |
| 130934 | Measures of the Location of the Data · Exercise 18 | Medium | |
| 130945 | Measures of the Center of the Data · Exercise 5 | Medium | |
| 130946 | Measures of the Center of the Data · Exercise 6 | Medium | |
| 130947 | Measures of the Center of the Data · Exercise 7 | Medium | |
| 130948 | Measures of the Center of the Data · Exercise 8 | Medium | |
| 130961 | Measures of the Spread of the Data · Exercise 8 | Medium | |
| 130964 | Measures of the Spread of the Data · Exercise 11 | Medium | |
| 130965 | Measures of the Spread of the Data · Exercise 12 | Medium | |
| 130966 | Measures of the Spread of the Data · Exercise 13 | Medium | |
| 130968 | Measures of the Spread of the Data · Exercise 15 | Medium | |