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ترتیب، توافیق اور احتمال

Written by Hassan Raza (Mathematics)

ای کیٹ · ریاضی · 6 سوالات

نام: ____________________   تاریخ: ____________

  1. What is the value of 5 factorial?

    • A 120
    • B 720
    • C 60
    • D 25

  2. What is the value of 6P2?

    • A 15
    • B 36
    • C 12
    • D 30

  3. Two fair dice are rolled. What is the probability that the sum is 7?

    • A 7/36
    • B 1/9
    • C 1/12
    • D 1/6

  4. A fair coin is tossed twice. What is the probability of getting at least one head?

    • A 1/4
    • B 1/2
    • C 2/3
    • D 3/4

  5. In how many ways can a committee of 3 be chosen from 6 people?

    • A 20
    • B 60
    • C 18
    • D 120

  6. What is the probability of drawing an ace from a well-shuffled pack of 52 cards?

    • A 1/26
    • B 4/13
    • C 1/4
    • D 1/13

جوابی کلید

1. A, 2. D, 3. D, 4. D, 5. A, 6. D

  1. 5! = 5 x 4 x 3 x 2 x 1 = 120.

  2. 6P2 = 6 x 5 = 30.

  3. Six of the 36 equally likely outcomes give a sum of 7, so the probability is 6/36 = 1/6.

  4. The only outcome with no head is TT, so the probability is 1 - 1/4 = 3/4.

  5. 6C3 = 6! / (3! x 3!) = 20.

  6. There are 4 aces in 52 cards, so the probability is 4/52 = 1/13.