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CBSE
Class 10
Mathematics
Mathematics
Probability

Question Bank

Question Bank: Probability

This chapter explores the basic concepts and definitions of probability, highlighting its significance in predicting outcomes in uncertain situations.

Question Bank - Probability

View all (88)
Q1.

What is the probability of getting a head when tossing a fair coin?

Single Answer MCQ
Q-00009677
Q2.

A bag contains 3 red balls and 5 blue balls. What is the probability of drawing a red ball?

Single Answer MCQ
Q-00009678
Q3.

What is the probability of rolling a number greater than 4 with a fair die?

Single Answer MCQ
Q-00009679
Q4.

What is the probability of drawing a queen from a standard deck of 52 cards?

Single Answer MCQ
Q-00009680
Q5.

If the probability of an event E is 0.3, what is the probability of 'not E'?

Single Answer MCQ
Q-00009681
Q6.

What is the probability of getting a sum of 10 when rolling two dice?

Single Answer MCQ
Q-00009682
Q7.

What is the theoretical probability of getting heads when tossing a fair coin?

Single Answer MCQ
Q-00009683
Q8.

In a class of 30 students, 18 are girls. What is the probability that a randomly chosen student is a boy?

Single Answer MCQ
Q-00009684
Q9.

Which of the following is a sure event?

Single Answer MCQ
Q-00009685
Q10.

If a box has 4 red, 3 blue, and 2 green marbles, what is the probability of drawing a blue marble?

Single Answer MCQ
Q-00009686
Q11.

What is the probability of drawing a red card from a standard deck of cards?

Single Answer MCQ
Q-00009687
Q12.

What is the probability of selecting a non-defective item from a lot of 100 items with 10 defective?

Single Answer MCQ
Q-00009688
Q13.

If a die is thrown, what is the probability of getting an even number?

Single Answer MCQ
Q-00009689
Q14.

In a single die roll, what is the probability of getting an even number?

Single Answer MCQ
Q-00009690
Q15.

If two coins are tossed, what is the probability of getting two heads?

Single Answer MCQ
Q-00009691
Q16.

What is the probability of picking a card that is a diamond from a standard deck of 52 cards?

Single Answer MCQ
Q-00009693
Q17.

The sum of the probabilities of all possible outcomes in an experiment is equal to:

Single Answer MCQ
Q-00009694
Q18.

What is the probability of drawing the ace of spades from a well-shuffled deck?

Single Answer MCQ
Q-00009696
Q19.

Which statement is true regarding the probability of complementary events?

Single Answer MCQ
Q-00009697
Q20.

If the chance of rain tomorrow is 0.2, what is the chance that it will not rain?

Single Answer MCQ
Q-00009698
Q21.

What is the probability of rolling a number less than 3 on a die?

Single Answer MCQ
Q-00009700
Q22.

Two coins are tossed. What is the probability of getting at least one tail?

Single Answer MCQ
Q-00009701
Q23.

Which event has a probability of 0?

Single Answer MCQ
Q-00009702
Q24.

How many ways can you draw a heart from a standard deck of cards?

Single Answer MCQ
Q-00009704
Q25.

If an experiment has three equally likely outcomes, what is the probability of any one specific outcome?

Single Answer MCQ
Q-00009705
Q26.

The probability of an event happening at least once in three trials, when the probability of the event in one trial is 1/4, is?

Single Answer MCQ
Q-00009707
Q27.

What is the probability of not rolling a 5 on a fair six-sided die?

Single Answer MCQ
Q-00009709
Q28.

If an event has a probability of 0.7, what is the probability of the complementary event?

Single Answer MCQ
Q-00009711
Q29.

What is the theoretical probability of getting a tail when tossing a fair coin?

Single Answer MCQ
Q-00009715
Q30.

If a die is rolled, what is the probability of rolling a number greater than 4?

Single Answer MCQ
Q-00009716
Q31.

In a bag with 3 white and 2 black balls, what is the probability of drawing a white ball?

Single Answer MCQ
Q-00009718
Q32.

What is the classical definition of probability given a scenario?

Single Answer MCQ
Q-00009720
Q33.

Given a fair coin toss, what is the probability of not getting tails?

Single Answer MCQ
Q-00009722
Q34.

What is the probability that when rolling a die, you will roll an even number?

Single Answer MCQ
Q-00009724
Q35.

If there are 4 red and 6 blue marbles in a bag, what is the probability of drawing a blue marble?

Single Answer MCQ
Q-00009726
Q36.

In a class of 20 students, if 12 are boys, what is the probability of selecting a girl at random?

Single Answer MCQ
Q-00009728
Q37.

What is the probability of rolling a sum of 7 with two dice?

Single Answer MCQ
Q-00009730
Q38.

What is the probability of drawing a king from a standard deck of 52 playing cards?

Single Answer MCQ
Q-00009732
Q39.

If you roll a die, what is the probability of rolling either a 2 or 5?

Single Answer MCQ
Q-00009734
Q40.

If a spinner is divided into 5 equal sections numbered 1 to 5, what’s the probability of landing on an odd number?

Single Answer MCQ
Q-00009739
Q41.

If you draw two cards from a standard deck without replacement, what is the probability both are aces?

Single Answer MCQ
Q-00009743
Q42.

What is the probability of getting at least one tail when tossing three fair coins?

Single Answer MCQ
Q-00009746
Q43.

What is the probability of rolling a 4 on a fair six-sided die?

Single Answer MCQ
Q-00035715
Q44.

If a coin is tossed, what is the probability of getting a tail?

Single Answer MCQ
Q-00035716
Q45.

What is the probability of drawing a heart from a standard deck of playing cards?

Single Answer MCQ
Q-00035717
Q46.

When two dice are rolled, what is the probability that the total is 8?

Single Answer MCQ
Q-00035718
Q47.

What is the probability of rolling an odd number on a six-sided die?

Single Answer MCQ
Q-00035719
Q48.

What is the probability of drawing a blue ball from a bag containing 4 red, 3 blue, and 2 green balls?

Single Answer MCQ
Q-00035720
Q49.

What is the probability of picking a yellow marble from a box that contains 5 red, 3 blue, and 4 yellow marbles?

Single Answer MCQ
Q-00035721
Q50.

If there are 10 students in a classroom, what is the probability of randomly selecting a specific student?

Single Answer MCQ
Q-00035722
Q51.

A coin is tossed four times. What is the probability of getting all heads?

Single Answer MCQ
Q-00035723
Q52.

What is the probability of getting at least one tail when tossing two coins?

Single Answer MCQ
Q-00035724
Q53.

What is the probability of rolling a number less than 3 on a standard six-sided die?

Single Answer MCQ
Q-00035725
Q54.

What is the probability of selecting a non-face card from a standard deck of cards?

Single Answer MCQ
Q-00035726
Q55.

In a bag with 2 red, 2 blue, and 1 green balls, what is the probability of drawing a green ball?

Single Answer MCQ
Q-00035727
Q56.

A jar has 10 candies, where 4 are chocolate, 3 are gummy, and 3 are sour. What is the probability of picking a sour candy?

Single Answer MCQ
Q-00035728
Q57.

When tossing a single fair coin, what is the complementary probability of getting tails?

Single Answer MCQ
Q-00035729
Q58.

What is the probability of getting a head when tossing a fair coin?

Single Answer MCQ
Q-00035730
Q59.

If a die is rolled, what is the probability of rolling an even number?

Single Answer MCQ
Q-00035731
Q60.

In a bag of 3 red balls and 2 blue balls, what is the probability of drawing a blue ball?

Single Answer MCQ
Q-00035732
Q61.

In a fair game involving a coin toss, the probability of winning is what?

Single Answer MCQ
Q-00035733
Q62.

If two coins are tossed, what is the probability of getting at least one tail?

Single Answer MCQ
Q-00035734
Q63.

What type of outcomes do we assume in theoretical probability?

Single Answer MCQ
Q-00035735
Q64.

What is the theoretical probability of rolling a number greater than 4 on a die?

Single Answer MCQ
Q-00035736
Q65.

A bag contains 5 red balls and 3 green balls. What is the probability of not drawing a red ball?

Single Answer MCQ
Q-00035737
Q66.

If the probability of event A is 0.4, what is the probability of its complement?

Single Answer MCQ
Q-00035738
Q67.

Which of the following represents a situation where outcomes are not equally likely?

Single Answer MCQ
Q-00035739
Q68.

For a game where you win $10 with a probability of 0.2 and lose $5 with a probability of 0.8, what is the expected value?

Single Answer MCQ
Q-00035740
Q69.

If an event has a probability of 0.75, what is the likelihood that it will not occur?

Single Answer MCQ
Q-00035741
Q70.

If the probability of two independent events A and B occurring is 0.4 and 0.5 respectively, what is the probability of both A and B occurring?

Single Answer MCQ
Q-00035742
Q71.

In a scenario where there are 4 equally likely outcomes, what is the probability of one specific outcome occurring?

Single Answer MCQ
Q-00035743
Q72.

What is the probability that a single card drawn from a standard deck of cards is a heart?

Single Answer MCQ
Q-00035744
Q73.

What is the theoretical probability of getting a head when flipping a fair coin?

Single Answer MCQ
Q-00035745
Q74.

If a fair six-sided die is rolled, what is the probability of rolling a number greater than 4?

Single Answer MCQ
Q-00035746
Q75.

What is the probability of drawing an Ace from a standard deck of 52 cards?

Single Answer MCQ
Q-00035747
Q76.

Which of the following represents an impossible event?

Single Answer MCQ
Q-00035748
Q77.

If P(E) = 0.7, what is P(not E)?

Single Answer MCQ
Q-00035749
Q78.

How many possible outcomes are there when flipping two coins?

Single Answer MCQ
Q-00035750
Q79.

When rolling two dice, what is the probability of getting a sum of 7?

Single Answer MCQ
Q-00035751
Q80.

Which event has a probability of 1?

Single Answer MCQ
Q-00035752
Q81.

If three coins are tossed, what is the probability of getting at least one head?

Single Answer MCQ
Q-00035753
Q82.

What is the probability of choosing a prime number from the first six natural numbers?

Single Answer MCQ
Q-00035754
Q83.

The sum of the probabilities of an event and its complement is:

Single Answer MCQ
Q-00035755
Q84.

In an experiment, if an event has probability 0.4, what is the likelihood of it not occurring?

Single Answer MCQ
Q-00035756
Q85.

Which of the following is true about experimental and theoretical probability?

Single Answer MCQ
Q-00035757
Q86.

What is the probability of getting a tail when a single fair coin is tossed?

Single Answer MCQ
Q-00035758
Q87.

When two dice are rolled, how many outcomes result in a sum of 9?

Single Answer MCQ
Q-00035759
Q88.

If P(A) + P(B) = 1 and A and B are complementary events, what can we say about their individual probabilities?

Single Answer MCQ
Q-00035760

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