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Refer the data: Find the probability ...

Refer the data:
Find the probability that a student obtained marks 60 or above.

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Refer to Table 14.7 (i) Find the probability that a student obtained less than 20% in the mathematics test. (ii) Find the probability that a student obtained marks 60 or above.

Refer the data: Find the probability that a student obtained less than 20% in the mathematics test.

A teacher analyses the performance of two sections of students in a mathematics test of 100 marks given in the following table : : Find the probability that a student obtained 60 or above

A teacher analyses the performance of two sections of students in a mathematics test of 100 marks given in the following table : : Find the probability that a student obtained less than 20 marks in the mathematics test.

In a particular section of Class IX, 40 students were asked about the months of their birth and the following graph was prepared for the data so obtained : Find the probability that a student of the class was born in August.

A teacher analyses the performance of two sections of students in a mathematics test of 100 marks given in the following table : : Find the probability that a student obtained less than 20% in the mathematics test.

In a class of 60 students, 30 opted for NCC, 32 opted for NSS and 24 opted for both NCC and NSS. If one of these students is selected at random, find the probability that The student opted for NCC or NSS.

The percentage of marks obtained by a student in the monthly unit tests are given below : Based on this data, find the probability that the student gets more than 70% marks in the next unit test.

The percentage of marks obtained by a student in the monthly unit tests are given below: Based on this data, find the probability that the student gets more than 70% marks in a unit test.

In a class of 60 students, 30 opted for NCC, 32 opted for NSS and 24 opted for both NCC and NSS. If one of these students is selected at random, find the probability that : the student opted for NCC or NSS.

MODERN PUBLICATION-PROBABILITY-EXERCISE
  1. Refer the data: Find the probability that a student obtained marks ...

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  2. Define a trial.

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  3. Define a event.

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  4. Define an elementary event.

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  5. Define the probability of an event.

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  6. When a die is thrown, what are the six possible outcomes?

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  7. Describe two events that are sure to happen.

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  8. Describe two events that are impossible to happen.

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  9. A fair coins is tossed 60 times and it came up with tails 27 times. Fi...

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  10. A die is thrown 100 times if the probability of getting an even number...

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  11. A coin is tossed 50 times and the tail appears 28 times. In a single t...

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  12. True/False: Probability of a sure event is 0.

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  13. True/False: Probability of an impossible event is 1.

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  14. True/False: If E is an event, then 0 le P(E) le1

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  15. True/False: If E is an event, the P(E) + P(notE) = 0

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  16. True|false: use the theoretical probability of an event 'E' is 0.47, ...

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  17. Can the experiment probability of an event be a negative number? If no...

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  18. True/False: The experimental probability of an event cannot be great...

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  19. True/False: Out of 35 students participating in a debate 10 are boys...

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  20. True/False: The probability of losing a game is 0.7. The probability...

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  21. True/False: In a one-day cricket match, a batsman hits the boundary ...

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