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Introduction To Mathematical Modelling

Question
CBSEENMA9004030

Three coins are tossed simultaneously 250 times with the following frequencies of different outcomes:

Outcome

Frequency

3 heads

38

2 heads

82

1 head

87

No head

43

If the three coins are simultaneously tossed again, find the probability of

(i)  3 heads
(ii)  less than 2 heads
(iii)  2 heads

Solution

Solution not provided.
Ans.   left parenthesis straight i right parenthesis space 19 over 125 space space space left parenthesis ii right parenthesis space 13 over 25 space space space left parenthesis iii right parenthesis space 41 over 125