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s344n2d4d5 [400]
2 years ago
5

17% of students in a class have brown hair. If 6 students are chosen at random, what is the probability that exactly 3 have brow

n hair? (Write your answer as a percentage rounded to the nearest tenth.)​
Mathematics
1 answer:
dezoksy [38]2 years ago
3 0

Answer:

6.8%

Step-by-step explanation:

the question has no information about class size (no. of student in class)

assume no. of student is infinite

P(3brown out of 6) = 6C3 * P(brown)^3 * P(not brown)^3

= 20 * 0.004913 * 0.695789

= 0.06837

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