Toss a coin 5 times. what is the probability of getting exactly 2 tails

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15-01-2018
Mathematics

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Toss a coin 5 times. what is the probability of getting exactly 2 tails

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Chenoppa Chenoppa · Answer 1 · 2018-01-15T05:22:49+01:00

Chenoppa Chenoppa

15-01-2018

The total number of outcomes is (1/2)^5 dice each of the 5 coin tosses is an independent event. From the 5 possible tails, exactly 2 tails need to be selected. So the favored outcome is 5C2 = (5*4)/(1*2)= 10. The probability is 10/32 = 5/16.

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