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Classical (theoretical) probability of an event MCQs

Practice Classical (theoretical) probability of an event multiple-choice questions from Probability (Class 10 Maths) - tap an answer for instant feedback and a step-by-step solution. Practice the full set free on the RankByte app.

Classical (theoretical) probability of an eventQuiz - Solve & Score

  1. Q1. If the probability of an event E is 1/4, then P(not E) is:

    • A.1/3
    • B.1/4
    • C.5/4
    • D.3/4

    Answer: D. 3/4

  2. Q2. P(E) = 3/7; find P(E-bar):

    • A.4/7
    • B.10/7
    • C.3/7
    • D.3/4

    Answer: A. 4/7

    Given 3, 7, asked for find P(E-bar). By hence the required answer = 4/7. hence the required answer = 4/7. set up the relation specified by the stem (formula / theorem from the relevant Class-10 chapter) and substitute the listed numerical data. So option A) 4/7. Others fail: option B) '10/7' fails since This misreads the ratio condition; option C) '3/7' is incorrect: A common comparison error gives this.

  3. Q3. If the probability of an event E is 5/12, then P(not E) is:

    • A.7/12
    • B.17/12
    • C.5/12
    • D.5/7

    Answer: A. 7/12

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