Question

The Jones family was one of the first to come to the U.S. They had 5...

The Jones family was one of the first to come to the U.S. They had 5 children. Assuming that the probability of a child being a girl is .5, find the probability that the Jones family had:

at least 2 girls?

at most 2 girls?

Math   Statistics-And-Probability   
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Answer #1


P(2)+P(3)+P(4)+P(5)

0.3125 +0.3125 +0.15625 +0.03125

= 0.8125

similarly for at most two girls

P(0)+P(1)+P(2)

0.03125+0.15625+0.3125

=0.5

please like ??

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