exercise:284167c2a8: Difference between revisions
From Stochiki
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
Find the variance for the number of boys in a royal family that has children until there is a boy or until there are three children, whichever comes first. | Find the variance for the number of boys in a royal family that has children until there is a boy or until there are three children, whichever comes first. Assume the probability of having a boy is 1/2. | ||
<ul class="mw-excansopts"> | <ul class="mw-excansopts"> | ||
Latest revision as of 12:39, 3 July 2024
Find the variance for the number of boys in a royal family that has children until there is a boy or until there are three children, whichever comes first. Assume the probability of having a boy is 1/2.
- 0.06
- 0.08
- 0.11
- 0.14
- 0.17
References
Doyle, Peter G. (2006). "Grinstead and Snell's Introduction to Probability" (PDF). Retrieved June 6, 2024.