Homework Soursesuppose 20 boating accidents are randomly selected find the
suppose 20 boating accidents are randomly selected. find the probability that exactly 8 did not occur in light wind conditions
| Binomal | |
| n | 20 |
| P | 0.65 |
| Xi | P(X<=Xi) |
| 0 | 0.0000 |
| 1 | 0.0000 |
| 2 | 0.0000 |
| 3 | 0.0000 |
| 4 | 0.0000 |
| 5 | 0.0003 |
| 6 | 0.0015 |
| 7 | 0.0060 |
| 8 | 0.0196 |
| 9 | 0.0532 |
| 10 | 0.1218 |
| 11 | 0.2376 |
| 12 | 0.3990 |
| 13 | 0.5834 |
| 14 | 0.7546 |
| 15 | 0.8818 |
| 16 | 0.9556 |
| 17 | 0.9879 |
| 18 | 0.9979 |
| 19 | 0.9998 |
| 20 | 1.0000 |
Solution
you just need to see in the table that you give in the question
the probability that exactly 8 did not occur in light wind conditions is the same that exactly 12 occur
P( x=12) = 0.3990
