Question

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

Outcome 1 head 2 heads 3 heads No head

frequency 23 72 77 28

If the three coins are simultaneously tossed again, compute the probability of getting two heads.​

Answer 1

Total number of times coin where tossed = 200

Number of times head comes as an outcome = 72

Probability = Number of favourable outcomes

Total number of outcomes

=> P(2 heads) = 72 = 36 = 18 = 9

200. 100. 50. 25

=>P = 9/25

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