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Probability Test - 1
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Probability Test - 1
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  • Question 1/2
    1 / -0

    Two fair dice are tossed. Let A be the event that the first die shows an even number and B be the event that second die shows an odd number. The two events A and B are

    Solutions

    They are independent events but not mutually exclusive.

  • Question 2/2
    1 / -0

    The probability that a leap year selected randomly will have 53 Sundays is

    Solutions

    A leap year contain 366 days i.e. 52 weeks and 2 days, clearly there are 52 Sundays in 52 weeks.

    For the remaining two days, we may have any of the two days

    (i) Sunday and Monday,
    (ii) Monday and Tuesday,
    (iii) Tuesday and Wednesday,
    (iv) Wednesday and Thursday, 
    (v) Thursday and Friday,
    (iv) Friday and Saturday and
    (vii) Saturday and Sunday.

    Now for 53 Sundays, one of the two days must be Sundays, hence required probability = 2/7.

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