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11th Standard English Medium Business Maths Subject Descriptive Statistics and Probability Book Back 1 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Business Maths

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. The two events A and B are mutually exclusive if _________.

    (a)

    \(P\left( A\cap B \right) =0\)

    (b)

    \(P\left( A\cap B \right) =1\)

    (c)

    \(P\left( A\cup B \right) =0\)

    (d)

    \(P\left( AUB \right) =1\)

  2. If two events A and B are dependent then the conditional probability of P(B/A) is _________.

    (a)

    \(P(A)P(B/A)\)

    (b)

    \(\frac { P(A\cap B) }{ P(B) } \)

    (c)

    \(\frac { P(A\cap B) }{ P(A) } \)

    (d)

    \(P(A)P(A/B)\)

  3. If the outcome of one event does not influence another event then the two events are _________.

    (a)

    Mutually exclusive

    (b)

    Dependent

    (c)

    Not disjoint

    (d)

    Independent

  4. The probability of obtaining an even prime number on each die, when a pair of dice is rolled is _________.

    (a)

    1/36

    (b)

    0

    (c)

    1/3

    (d)

    1/6

  5. Probability that at least one of the events A, B occur is _________.

    (a)

    \(P(A\cup B)\)

    (b)

    \(P(A\cap B)\)

    (c)

    P(A/B)

    (d)

    \((A\cup B)\)

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