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11th Standard English Medium Business Maths Subject Descriptive Statistics and Probability Book Back 2 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Business Maths

Time : 00:30:00 Hrs
Total Marks : 10
    5 x 2 = 10
  1. Find the first quartile and third quartile for the given observations
    2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22

  2. A die is thrown twice and the sum of the number appearing is observed to be 6. What is the conditional probability that the number 4 has appeared at least once?

  3. An unbiased die is thrown. If A is the event ‘the number appearing is a multiple of 3’ and B be the event ‘the number appearing is even’ number then find whether A and B are independent?

  4. A bag contains 5 white and 3 black balls. Two balls are drawn at random one after the other without replacement. Find the probability that both balls drawn are black.

  5. A committee of two persons is formed from 3 men and 2 women. What is the probability that the committee will have
    (i) No woman (ii) One man (iii) No man

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