Adaptive Practice
Probability
10 questions • Earn up to 104 XP • First attempt — go for 100%!
0
XP
0
Correct
x1
Combo
Question 1 of 10
⏱ 0:30
Easy
A bag contains 5 red balls and 3 green balls. If one ball is drawn at random, what is the probability of drawing a red ball?
Easy
A coin is tossed twice. What is the probability of getting exactly one head?
Easy
A die is rolled once. What is the probability of getting a number greater than 4?
Medium
Two dice are rolled. What is the probability that the sum of the numbers is 7?
Medium
A card is drawn from a well-shuffled deck of 52 cards. What is the probability of drawing a King or a Queen?
Medium
A box contains 4 defective and 6 good bulbs. If two bulbs are drawn one after another without replacement, what is the probability that both are defective?
Medium
A bag contains 3 white, 4 black, and 5 red balls. One ball is drawn at random. What is the probability that the ball is neither black nor red?
Easy
A spinner is divided into 8 equal sectors numbered 1 to 8. What is the probability of getting a number which is a multiple of 3?
Hard
In a class of 40 students, 25 like cricket and 18 like football. If 10 students like both games, what is the probability that a randomly selected student likes either cricket or football?
Hard
A bag contains 6 red, 4 blue, and 5 green balls. Two balls are drawn at random without replacement. What is the probability that both balls are of the same colour?