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If two coins are tossed simultaneously what is the probability of getting exactly one tail?(a) 1/2(b) 1/3(c) 1/4(d) 3/4I have been asked this question in exam.My query is from Probability in section Probability of Mathematics – Class 11

Answer»

Right answer is (a) 1/2

To ELABORATE: If two COINS are TOSSED simultaneously total number of possible outcomes are 4.

{HH, TT, HT, TH} out of which {HT, TH} favour the event.

So, probability of getting exactly ONE tail = 2/4 = 1/2.



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