Question

Q. Three coins are tossed simultaneously 200 times with the the following frequencies of different outcomes:

Outcome Frequency

3 heads 23

2 heads 72

1 head 77

no head 28

How to find probability of getting:

1. three heads 2. at least two heads 3. two heads and one tail

Answer 1

1.probability of getting 3 heads= 23/200
2.probability of getting at least two heads=95/200
3. Probability of getting 2 heads and 1 tail=72/200