Sample spaces Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | A P(2 heads) = 14 | Easy | Solved step by step |
| 2 | P(no heads) = 14 | Easy | Solved step by step |
| 3 | B P(sum 7) = 16 | Easy | Solved step by step |
| 4 | P(exactly 2 heads) = 38 | Medium | Solved step by step |
| 5 | A P(exactly 1 head) = 38 | Medium | Solved step by step |
| 6 | P(sum more than 9) = 16 | Medium | Solved step by step |
| 7 | B P(sum 11) = 118 | Medium | Solved step by step |
| 8 | P(at least 2 heads) = 12 | Harder | Solved step by step |
| 9 | B P(not doubles) = 56 | Harder | Solved step by step |
| 10 | P(sum more than 3) = 1112 | Harder | Solved step by step |
Grade
Count your right answers and divide by the number of questions: A 90% or more, B 80%, C 70%, D 60%, F below 60%.