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In Class XI of a school 40% of the st...

In Class XI of a school 40% of the students study Mathematics and 30% study Biology. 10% of the class study both Mathematics and Biology. If a student is selected at random from the class, find the probability that he will be studying Mathematics

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MODERN PUBLICATION-PROBABILITY-NCERT-FILE (EXERCISE 16.3 )
  1. A coin is tossed twice, what is the probability that atleast one ta...

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  2. A die is thrown, find the probability of following events: (i) A pri...

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  3. A card is selected from a pack of 52 cards. (a) How many points are ...

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  4. A fair coin with 1 marked on one face and 6 on the other and a fair di...

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  5. There are four men and six women on the city council. If one counci...

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  6. A fair coin is tossed four times, and people win Re 1 for each head...

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  7. Three coins are tossed once. Fmd the probability of getting (i) 3 h...

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  8. If 5/11 is the probabililty of an event what is the probability of the...

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  9. A letter is chosen at random from the word ASSASSINATION. Find the pro...

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  10. In a lottery, a person choses six different natural numbers at rand...

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  11. Check whether the following probabilities P(A) and P(B) the consistent...

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  12. Fill in the blanks in following table: {:(" ...

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  13. Given P(A)=3/5 and P(B)=1/5 . Find P(A "or" B), if A and B are mutuall...

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  14. If E and F are events such that P(E)=1/4, P(F)=1/2 and P(E"and"F)=1/8,...

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  15. Events E and F are such that P (not E or not F) =0.25. State whether E...

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  16. A and B are events such that P(A) = 0. 42, P(B) = 0. 48and P(A a n d B...

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  17. In Class XI of a school 40% of the students study Mathematics and 3...

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  18. In an entrance test that is graded on the basis of two examinations...

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  19. The probability that a student will pass the final examination m bo...

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  20. In a class of 60 students, 30 opted for NCC, 32 opted for NSS and 2...

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