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  3. three coins are tossed, and a) exactly two heads c

Three coins are tossed, and A) exactly two heads come up B) at least one tail comes...

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Question

Basic Math

Three coins are tossed, and
A) exactly two heads come up
B) at least one tail comes up
Find Probability of A or B

Answer & Explanation Solved by verified expert
3.7 Ratings (483 Votes)

A) P(exactly two heads) = 3/8 = 0.375

B) P(at least one tail comes up) = 7/8 = 0.875

P(A or B) = 3/8 = 0.375

                                      

                                                            

                                                                 

                                           
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