Adaptive Practice
Probability
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Easy
A fair six-faced dice is rolled once. What is the probability of getting a number greater than 4?
Easy
A bag contains 5 red balls, 3 green balls, and 2 blue balls. If a ball is drawn at random, what is the probability that it is green?
Easy
Two coins are tossed simultaneously. What is the probability of getting exactly one head?
Medium
A card is drawn from a well-shuffled deck of 52 cards. What is the probability of drawing a king or a queen?
Easy
A box contains 10 bulbs out of which 3 are defective. One bulb is drawn at random. What is the probability that the bulb drawn is not defective?
Easy
If the probability of an event is 0.75, what is the probability of its complement?
Medium
A bag contains 4 white and 6 black balls. Two balls are drawn one after the other without replacement. What is the probability that both balls are white?
Easy
A box contains 5 red, 4 green, and 3 blue balls. One ball is drawn at random. What is the probability that the ball is either red or blue?
Hard
In a class of 40 students, 25 like cricket and 20 like football. If every student likes at least one of the two games, how many students like both?
Medium
A bag contains 2 red, 3 green, and 5 blue balls. Two balls are drawn at random with replacement. What is the probability that both balls are green?