Question

An unbiased coin is tossed thrice. Find the probabilities of the following events.A : exactly 2 heads are received.B :at least 2 heads are received.C :at most 2 heads are received.​

Answer 1

Answer:

Probability of getting a head on one toss of the coin

2

1

Probability of getting a head every time if the coin is tossed three times

=

1

_____

2

×

1

___

2

×

1

____

2

=

1

__

8