1.

she did not hit a boundary.Two unbiased coins are tossed once. What is the probability of getting exactly one head?

Answer»

Whentwo coins are tossed simultaneouslythen the possible outcomes obtained are {HH, HT, TH, and TT}. Here H denotes head and T denotes tail. Therefore, a total of 4 outcomes obtained ontossing two coins simultaneously.

A = Exactly one is head = {HT, TH}

So, P(A) = 2/4 = 1/2



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