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1500 families with 2 children were selec...

1500 families with 2 children were selected randomly , and the following data were recorded.
`{:("Number of girls in a family",2,1,0),("Number of families",475,814,211):}`
Compute the probability of a family , chosen at random , having
No girls. Also check whether the sum of these probabilities is 1.

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The correct Answer is:
`211/1500`
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KUMAR PRAKASHAN-PROBABILITY -EXERCISE 15.1
  1. 1500 families with 2 children were selected randomly , and the followi...

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  2. 1500 families with 2 children were selected randomly , and the followi...

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  3. 1500 families with 2 children were selected randomly , and the followi...

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

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  5. Three coins are tossed simultaneously 200 times with the following fre...

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  6. An organisation selected 2400 families at random and surveyed them to ...

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  7. An organisation selected 2400 families at random and surveyed them to ...

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  8. An organisation selected 2400 families at random and surveyed them to ...

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  9. An organisation selected 2400 families at random and surveyed them to ...

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  10. An organisation selected 2400 families at random and surveyed them to ...

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

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

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  13. To know the opinion of the students about the subject statistics , a s...

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  14. To know the opinion of the students about the subject statistics , a s...

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  15. What is the empirical probability that an engineer lives : within 1...

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  16. What is the empirical probability that an engineer lives : within 1...

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  17. Find the probability that a number selected at random from 1 to 100 is...

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  18. 5 girls and 10 boys sit at random in a row having 15 chairs numbered a...

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  19. Out of 3n consecutive integers, three are selected at random. Find t...

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  20. Eleven bags of wheat flour, each marked 5 kg, actually contained the f...

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