Adaptive Practice
Probability
10 questions • Earn up to 113 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
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 that the card drawn is a King or a Heart?
Medium
From a group of 7 men and 6 women, a committee of 3 persons is to be formed. What is the probability that the committee has exactly 2 men?
Medium
A die is rolled twice. What is the probability that the sum of the numbers obtained is 8?
Medium
A box contains 10 bulbs, out of which 3 are defective. Two bulbs are drawn one after another without replacement. What is the probability that both bulbs are defective?
Medium
In a class of 40 students, 25 like Mathematics and 18 like Physics. If 10 students like both subjects, what is the probability that a student chosen at random likes Mathematics or Physics?
Hard
A bag contains 4 white, 5 black, and 6 red balls. Two balls are drawn at random. What is the probability that both balls are of the same color?
Hard
A box has 12 balls numbered 1 to 12. One ball is drawn at random. What is the probability that the number on the ball is a multiple of 3 or 4?
Hard
From a pack of 52 cards, two cards are drawn at random without replacement. What is the probability that both cards are Aces?