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Soloha48 [4]
2 years ago
15

There are 24 children in a class, 16 brown-haired and 8 black-haired. Two students are randomly selected for a stage performance

. Find the probability of the following selection. P(2 black haired children)
Mathematics
1 answer:
Natali5045456 [20]2 years ago
6 0
The answer is 7/69.

There are 8 black-haired children among 24 children. The probability of <span>randomly selecting black haired children for the first time is:
P1 = 8/24 = 1/3

Now, there are 7 black-haired children left among 23 children. The probability of </span>randomly selecting black haired children for the second time is:
P2 = 7/23

Since we want both of these events to occur together, we will multiply their probabilities:
P = P1 * P2 = 1/3 * 7/23 = 7/69
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<h3>What is the surface area of a prism?</h3>

It is the sum of the areas of all faces of a prism. In this problem, the prism has these following faces:

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Then the surface area of the prism is:

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