Question: A family has n children with probability pn n

A family has n children with probability αpn, n ≥ 1, where α ≤ (1 − p)/p.
(a) What proportion of families has no children?
(b) If each child is equally likely to be a boy or a girl (independently of each other), what proportion of families consists of k boys (and any number of girls)?

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  • CreatedOctober 22, 2015
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