Question

If three coins are tossed simultaneously, then find the probability of getting at least one tail .






.








.

Answer 1

The sample space for a simultaneous toss of coins

S={HHH,HHT,HTT,THH,TTH,THT,HTH,HHH}

Favourable cases={HHT,HTT,THH,TTH,THT,HTH}

∴P(getting at least one head, one tail)=

8

6

=

4

3

Answer 2

Probablity=3/6

=1/2

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