| 131191 | Mean or Expected Value and Standard Deviation · Exercise 31 | Medium | |
| 131216 | Binomial Distribution (Optional) · Exercise 10 | Medium | |
| 131220 | Binomial Distribution (Optional) · Exercise 14 | Medium | |
| 131226 | Binomial Distribution (Optional) · Exercise 20 | Medium | |
| 131227 | Binomial Distribution (Optional) · Exercise 22 | Medium | |
| 131229 | Binomial Distribution (Optional) · Exercise 24 | Medium | |
| 131231 | Binomial Distribution (Optional) · Exercise 26 | Medium | |
| 131233 | Binomial Distribution (Optional) · Exercise 28 | Medium | |
| 131244 | Geometric Distribution (Optional) · Exercise 1 | Medium | |
| 131251 | Geometric Distribution (Optional) · Exercise 8 | Medium | |
| 131253 | Geometric Distribution (Optional) · Exercise 10 | Medium | |
| 131257 | Geometric Distribution (Optional) · Exercise 14 | Medium | |
| 131269 | Hypergeometric Distribution (Optional) · Exercise 7 | Medium | |
| 131271 | Hypergeometric Distribution (Optional) · Exercise 9 | Medium | |
| 131278 | Poisson Distribution (Optional) · Exercise 8 | Medium | |
| 131285 | Poisson Distribution (Optional) · Exercise 16 | Medium | |
| 131287 | Poisson Distribution (Optional) · Exercise 20 | Medium | |
| 131289 | Poisson Distribution (Optional) · Exercise 22 | Medium | |
| 128914 | Probability Distribution Function (PDF) for a Discrete Random Variable · Exercise 5 | Medium | |
| 128938 | Mean or Expected Value and Standard Deviation · Exercise 2 | Medium | |
| 128940 | Mean or Expected Value and Standard Deviation · Exercise 4 | Medium | |
| 128958 | Mean or Expected Value and Standard Deviation · Exercise 23 | Medium | |
| 128962 | Mean or Expected Value and Standard Deviation · Exercise 27 | Medium | |
| 128964 | Mean or Expected Value and Standard Deviation · Exercise 29 | Medium | |
| 128978 | Binomial Distribution · Exercise 1 | Medium | |
| 128980 | Binomial Distribution · Exercise 3 | Medium | |
| 128982 | Binomial Distribution · Exercise 5 | Medium | |
| 128984 | Binomial Distribution · Exercise 7 | Medium | |
| 128989 | Binomial Distribution · Exercise 12 | Medium | |
| 128993 | Binomial Distribution · Exercise 16 | Medium | |
| 128995 | Binomial Distribution · Exercise 18 | Medium | |
| 129018 | Geometric Distribution · Exercise 3 | Medium | |
| 129020 | Geometric Distribution · Exercise 5 | Medium | |
| 129027 | Geometric Distribution · Exercise 12 | Medium | |
| 129037 | Hypergeometric Distribution · Exercise 1 | Medium | |
| 129039 | Hypergeometric Distribution · Exercise 3 | Medium | |
| 129041 | Hypergeometric Distribution · Exercise 5 | Medium | |
| 129060 | Poisson Distribution · Exercise 2 | Medium | |
| 129062 | Poisson Distribution · Exercise 4 | Medium | |
| 129064 | Poisson Distribution · Exercise 6 | Medium | |
| 129068 | Poisson Distribution · Exercise 10 | Medium | |
| 129070 | Poisson Distribution · Exercise 12 | Medium | |
| 129084 | Poisson Distribution · Exercise 26 | Medium | |
| 130440 | Geometric Distribution · Exercise 12 | Medium | |
| 131174 | Mean or Expected Value and Standard Deviation · Exercise 2 | Medium | |
| 131176 | Mean or Expected Value and Standard Deviation · Exercise 4 | Medium | |
| 131185 | Mean or Expected Value and Standard Deviation · Exercise 23 | Medium | |
| 131188 | Mean or Expected Value and Standard Deviation · Exercise 27 | Medium | |
| 131208 | Binomial Distribution (Optional) · Exercise 1 | Medium | |
| 131210 | Binomial Distribution (Optional) · Exercise 3 | Medium | |