belle3745 belle3745

18-07-2021
Mathematics

contestada

The Jones family was one of the first to come to the U.S. They had 9 children. Assuming that the
probability of a child being a girl is .5, find the probability that the Jones family had:
at least 7 girls?
at most 8 girls?

Respuesta :

blaisewilson76 blaisewilson76

18-07-2021

Answer:

At least 7 girls: 0.5^7 OR 0.0078125

At least 8 girls: 0.5^8 OR 0.00390625

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