Find the probability of at least 2 girls in births. Assume that male and female births are equally likely and that the births are independent events. Round to three decimal places.

Question

Rachael Lawson

Mathematics

5 January, 20:58

Find the probability of at least 2 girls in births. Assume that male and female births are equally likely and that the births are independent events. Round to three decimal places.

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Peter · Answer 1

We assume that male and female births are equally likely, it means that the probability of birth of male = probability of birth of female = 100%/2=50% or 0.5We have 2 independent events. So what will be the variants:

Male and FemaleMale and Male Female and Male Female and Female

All four variants are equally likely. Probability of each one is 1/4 = 0.25. So, Result "Female and Female"

are probability = 0.250 - - - if round to three decimal places.