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WAEC Mathematics 2022 Paper

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Question : 30

Total: 47

Mrs Gabriel is pregnant. The probability that she will give birth to a girl is 1/2 and with blue eyes is 1/4. What is the probability that she will give birth to a girl with blue eyes?

1
$\;\frac{3}{4}$
$\;\frac{1}{8}$
$\;\frac{1}{4}$

Solution:

Girl = $\;\frac{1}{2}$

Blue eyes = $\;\frac{1}{4}$

probability that she will give birth to a girl with blue eyes: $\;\frac{1}{2}$ x $\;\frac{1}{4}$

= $\;\frac{1}{8}$

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