Question

twocoins are tossed what is the probability of getting at most one head ?
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Answer 1

Step-by-step explanation:

In tossing a coin,all possible outcomes are HH,Ht,th,TT.

getting both heads means HH.

no.of such outcomes=1

p(getting a head)=1/4.

getting atleast 1 head means Ht,th,HH.

no.of such outcomes=3.

p(getting atleast 1 head) =3/4