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Question

If a coin is tossed twice, find the probability of getting at least one head.


A

34

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B

23

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C

12

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D

14

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Solution

The correct option is A

34


Find the probability of getting a head
Sample space: HH,HT,TH,TT

Probability =NumberoffavourableoutcomesTotalnumberofoutcomes

The probability of getting no head is = 14

Probability of getting at least one head = 1-14=34

Hence, the probability of getting at least one head is 34.


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