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garri49 [273]
3 years ago
6

A physical education class has 21 boys and 9 girls. Each day, the teacher randomly selects a team captain. Assume that no studen

t is absent. What is the probability that the team captain is a girl two days in a row?
Mathematics
1 answer:
DiKsa [7]3 years ago
6 0

Answer: 0.09

Step-by-step explanation:

From the question, in a physical education class, there are 21 boys and 9 girls. Each day, the teacher randomly selects a team captain randomly.

The probability that the team captain will be a girl two days in a row assuming no student is absent will be:

Boys = 21

Girls = 9

Total = 21 + 9 = 30

P(pick a girl) = 9/30 = 3/10 = 0.3

P(pick a girl 2 days in a row) = (0.3)²

= 0.09

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