Question 1161802
Assume that the probability of a boy being born is the same as the probability of a girl being born. Find the probability that a family with four children will have the given composition. (Enter your answer to four decimal places.)

At least one girl
<pre>Easiest method: {{{highlight_green(matrix(1,15, "P(At", least, 1, "girl)", "=", 1, "-", "P(All", "boys)", "=", 1 - 1/16, "=", 15/16, "=", highlight(.9375)))}}}
OR
You can use the BINOMCDF function on a TI-83/84 graphing calculator.
OR
The BINOMDIST function in MS Excel.
BTW: 4 births result in 2<sup>4</sup> = 16 outcomes.