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Three coins are tossed simultaneously 20...

Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes :
`{:("Outcome",3,2,1,No),(,"heads","heads","heads","heads"),("Frequency",23,72,77,28):}`
If the three coins are simultaneously tossed again , compute the probability of 2 heads coming up.

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KUMAR PRAKASHAN-PROBABILITY -EXERCISE 15.1
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  8. An organisation selected 2400 families at random and surveyed them to ...

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  9. Find the probability that a student obtained marks 60 or above.

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  10. The following table given the marks scored by 50 students in a 100 mar...

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