Probability
Basic probability concepts and problems.
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Take a full mock →Q1 · Probability · EASY
A bag contains 5 red balls and 3 blue balls. If one ball is drawn at random, what is the probability that it is red?
Q2 · Probability · MEDIUM
Two dice are thrown simultaneously. What is the probability of getting a sum of 7?
Q3 · Probability · MEDIUM
A box contains 4 white, 5 black, and 6 green balls. One ball is picked randomly. What is the probability that the ball is either white or green?
Q4 · Probability · HARD
A card is drawn from a well-shuffled deck of 52 cards. What is the probability that the card is either a King or a Heart?
Q5 · Probability · EASY
A bag contains 3 red balls, 4 blue balls, and 5 green balls. If one ball is drawn at random, what is the probability that it is NOT blue?