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Probability

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Apply classical definition of probability to simple events

Subtopic

Apply classical definition of probability to simple events under Probability for Grade 10 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    In a box of 2020 light bulbs, 44 are defective. One bulb is taken out at random. What is the probability that it is not defective?

    A.

    15\frac{1}{5}

    B.

    25\frac{2}{5}

    C.

    35\frac{3}{5}

    D.

    45\frac{4}{5}

  2. 2.

    A card is drawn from a deck of 5252 cards. What is the probability that the card is not a face card?

    A.

    313\frac{3}{13}

    B.

    1013\frac{10}{13}

    C.

    913\frac{9}{13}

    D.

    413\frac{4}{13}

  3. 3.

    If two coins are tossed, the probability of getting exactly one head is:

    A.

    14\frac{1}{4}

    B.

    12\frac{1}{2}

    C.

    34\frac{3}{4}

    D.

    11

Download the worksheet for Probability - Apply classical definition of probability to simple events to practice offline. It includes additional chapter-level practice questions.

Solve real-life probability problems by identifying sample space and favourable outcomes

Subtopic

Solve real-life probability problems by identifying sample space and favourable outcomes under Probability for Grade 10 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A spinner is divided into 5 equal sections numbered 1 to 5. What is the probability of the spinner landing on the number 4?

    A.

    45\frac{4}{5}

    B.

    14\frac{1}{4}

    C.

    15\frac{1}{5}

    D.

    25\frac{2}{5}

  2. 2.

    A box contains 20 bulbs, out of which 4 are defective. If one bulb is drawn at random, what is the probability that it is a non-defective bulb?

    A.

    15\frac{1}{5}

    B.

    45\frac{4}{5}

    C.

    34\frac{3}{4}

    D.

    14\frac{1}{4}

  3. 3.

    A number is selected at random from the numbers 10, 11, 12, ..., 20. What is the probability that it is an even number?

    A.

    511\frac{5}{11}

    B.

    611\frac{6}{11}

    C.

    12\frac{1}{2}

    D.

    510\frac{5}{10}

Download the worksheet for Probability - Solve real-life probability problems by identifying sample space and favourable outcomes to practice offline. It includes additional chapter-level practice questions.

Introduction

Subtopic

Introduction under Probability for Grade 10 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A card is drawn from a well-shuffled deck of 52 cards. What is the probability of getting a non-face card?

    A.

    1013\frac{10}{13}

    B.

    313\frac{3}{13}

    C.

    113\frac{1}{13}

    D.

    4052\frac{40}{52}

  2. 2.

    Two coins are tossed. The probability of getting at most one head is:

    A.

    14\frac{1}{4}

    B.

    12\frac{1}{2}

    C.

    34\frac{3}{4}

    D.

    11

  3. 3.

    What is the probability of picking a blue ball from a bag containing 10 red balls and 0 blue balls?

    A.

    11

    B.

    0.10.1

    C.

    00

    D.

    0.50.5

Download the worksheet for Probability - Introduction to practice offline. It includes additional chapter-level practice questions.

Probability — A Theoretical Approach

Subtopic

Probability — A Theoretical Approach under Probability for Grade 10 CBSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A number is selected at random from the first 2525 natural numbers. What is the probability that the selected number is a multiple of both 22 and 33?

    A.

    225\frac{2}{25}

    B.

    325\frac{3}{25}

    C.

    425\frac{4}{25}

    D.

    625\frac{6}{25}

  2. 2.

    A card is drawn from a pack of 5252 cards. The probability that it is a black queen is:

    A.

    126\frac{1}{26}

    B.

    152\frac{1}{52}

    C.

    113\frac{1}{13}

    D.

    213\frac{2}{13}

  3. 3.

    Two coins are tossed. What is the probability of getting 22 tails?

    A.

    12\frac{1}{2}

    B.

    14\frac{1}{4}

    C.

    34\frac{3}{4}

    D.

    11

Download the worksheet for Probability - Probability — A Theoretical Approach to practice offline. It includes additional chapter-level practice questions.