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A bag contains 4 white and 3 black balls...

A bag contains 4 white and 3 black balls. Two balls are drawn at random. Find the probability that they are of the same colour.

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MODERN PUBLICATION-PROBABILITY-EXERCISE
  1. Fill in the blanks: An event is of sample space.

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  2. Fill in the blanks: Probability of events is 100%

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  3. Fill in the blanks: Probability of two approaches namely probabilit...

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  4. Fill in the blanks: Experimental probability is based on performing.

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  5. The probability of an impossible event is

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  6. Which of the following cannot be the probability of an event?

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  7. Two coins are tossed simultaneously. The probability of getting atmost...

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  8. A bag contains 5 red, 8 black and 7 white balls. One ball is chosen at...

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  9. In 40 tosses of a coin, tail appears 32 times. If a coin is tossed at ...

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  10. Three unbiased coins are tossed. What is the probability of getting at...

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  11. In a single throw of a die, what is the probability of getting a numbe...

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  12. One card is drawn at random from pack of 52 cards. What is the probabi...

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  13. Two unbiassed coins are tossed. Find the probability of getting at mos...

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  14. In a simultaneous throw of a pairof dice, find the probability of gett...

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  15. A bag contains 4 white and 3 black balls. Two balls are drawn at rando...

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  16. A man speaks truth 6 out of 9 times. What is the probability that he w...

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  17. Two regular dice (on blue and other red) are rolled. Find the nuber of...

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  18. A bag contains'n' red heads, 'y' yellow heads, 'z' blue heads. A head ...

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  19. In a raffle 200 tickets are sold. Reena buys one ticket. What is the p...

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

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