Question

Two coins are tossed simultaneously. Find the probability of getting

(i) At least one tail.

(ii) Head on both the coins.​

Answer 1

Answer:

1.2/4=1/2

2.1/4

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Answer 2

Let S be the sample space

:. S={TT,TH,HT,HH}

:.n(S)=4

Let (i) be event A

:. A={TT,TH,HT}

:.n(A)=3

we know,

p(A)=n(A)/n(S)

= 3/4

AND

Let (ii) be event B

:.B={HH}

:.n(B)=1

we know

p(B)=n(B)/n(S)

=1/4