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CBSE Class 9 Answered

Three unbiased coins are tossed together. Find the probability of getting (i) Two heads (ii) At least two heads (iii) No head
Asked by Topperlearning User | 11 Dec, 2013, 01:05: AM
answered-by-expert Expert Answer

Sample cases = {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT} = 8 cases

(i) P(two heads) =

(ii) P(at least 2 heads) =

(iii) P(No head) =

Answered by | 11 Dec, 2013, 03:05: AM

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