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Using binomial distribution, find the probability that in tossing a fair coin three times, there will appear: a) 3 heads b) 2 tails and 1

Using binomial distribution, find the probability that in tossing a fair coin three times, there will appear:

a) 3 heads

b) 2 tails and 1 head

c) At least 1 head

d) Not more than 1 tail

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