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प्रश्न
Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes:-
| Outcome | 3 heads | 2 heads | 1 head | No head |
| Frequency | 23 | 72 | 77 | 28 |
If the three coins are simultaneously tossed again, compute the probability of 2 heads coming up.
उत्तर
Number of times 2 heads come up = 72
Total number of times the coins were tossed = 200
`"P(2 heads will come up)" = "Number of times 2 heads come up"/"Total number of times the coins were tossed"`
= `72/200`
= `9/25`
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