3 years ago

(please help) look at the picture below

Mathematics

1 answer:

aev [14]3 years ago

8 0

Answer: 0.75 . Work is shown below

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Answer:

The probability of picking at least three boys is $\frac{5}{41}$ .

Step-by-step explanation:

We have to choose 5 people to form a student government.

We have to pick 5 people out of 7 girls and 5 boys.

What is the probability that at least 3 boys are a part of the student government?

The probability of picking 5 people out of 12 girls and boys = $\frac{5}{12}$

The probability of picking at least 3 boys excludes the probability of picking 3 girls. The probability of picking 3 girls = $\frac{3}{7}$

The probability of picking at least 3 boys = 1 - $\frac{3}{7}$ = $\frac{2}{7}$

The probability of picking 5 people and the probability of picking at least 3 boys = $\frac{5}{12}$ × $\frac{2}{7}$ = $\frac{5}{41}$

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Step-by-step explanation:

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