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Question

Toss three fair coins simultaneously and record the outcomes. Find the probability of getting atmost one head in the three tosses.

A
16
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B
14
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C
12
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D
13
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Solution

The correct option is C 12
Toss three fair coins simultaneously and record the outcomes.The sample space is HHH, HHT, HTH, HTT, THH, THT, TTH and TTT N=8
atmost one head in 4 events
the probability of getting atmost one head in the three tosses.P(E)=48=12

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