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A coin is tossed two times. Find the pro...

A coin is tossed two times. Find the probaility of getting atmost one head.

Text Solution

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The possible outcomes, If a coin is tossed 2 times is S={(HH),(TT),(HT),(TH)}
Let E=Event of getting at most one head ={(TT),(HT),(TH)}
n(E )=3
Hence, required probability=`(n(E ))/(n(S))=(3)/(4)`
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