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

Outcomes

3 heads

2 heads

1 head

No heads

Frequency

23

72

77

28

Find the probability of getting

(i) 3 heads

(ii) at least two heads

(iii) two heads and one tail.

Asked by Topperlearning User 11th December 2013, 12:33 AM
Answered by Expert
Answer:

Total number of trials = 200

(i) P(getting 3 heads) =

(ii) P(at least two heads) = 

(iii) P(two heads and one tail) = 

Answered by Expert 11th December 2013, 2:33 AM
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