Probability Rules
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Q. A bag contains 4 white and 6 black balls. If one ball is drawn at random, what is the probability that it is not black?
Q. A bag contains 4 white balls and 6 black balls. If one ball is drawn at random, what is the probability that it is black?
Q. A bag contains 4 white balls and 6 black balls. If one ball is drawn at random, what is the probability that it is not black?
Q. A bag contains 4 white, 3 black, and 5 red balls. If one ball is drawn at random, what is the probability that it is not black?
Q. A bag contains 4 white, 5 black, and 6 red balls. If one ball is drawn at random, what is the probability that it is not black?
Q. A box contains 10 balls numbered from 1 to 10. What is the probability of drawing a ball with an even number?
Q. A box contains 10 balls, 4 of which are red. If one ball is drawn at random, what is the probability that it is red? (2020)
Q. A box contains 10 balls, of which 4 are red and 6 are blue. If one ball is drawn, what is the probability that it is not red?
Q. A box contains 10 balls, of which 4 are white and 6 are black. If one ball is drawn, what is the probability that it is black?
Q. A box contains 10 balls, of which 4 are white and 6 are black. If one ball is drawn at random, what is the probability that it is white?
Q. A box contains 10 balls, of which 4 are white and 6 are black. If one ball is drawn at random, what is the probability that it is black?
Q. A box contains 10 light bulbs, of which 3 are defective. If one bulb is selected at random, what is the probability that it is not defective?
Q. A box contains 3 red balls and 2 blue balls. If one ball is drawn at random, what is the probability that it is red?
Q. A box contains 3 red, 5 blue, and 2 green balls. If one ball is drawn at random, what is the probability that it is blue?
Q. A coin is tossed three times. What is the probability of getting at least one head?
Q. A jar contains 5 green, 3 yellow, and 2 blue marbles. If one marble is drawn at random, what is the probability that it is either green or yellow?
Q. A jar contains 5 green, 7 yellow, and 8 blue marbles. If one marble is drawn at random, what is the probability that it is either green or yellow?
Q. A jar contains 5 red, 3 blue, and 2 yellow marbles. If one marble is drawn, what is the probability that it is either red or yellow?
Q. A jar contains 5 red, 3 blue, and 2 yellow marbles. What is the probability of drawing a yellow marble?
Q. A jar contains 5 red, 3 blue, and 2 yellow marbles. What is the probability of picking a yellow marble? (2023)
Q. If a die is rolled, what is the probability of rolling an even number?
Q. If a student is selected at random from a group of 15 students, where 9 are girls and 6 are boys, what is the probability that the selected student is a boy? (2021)
Q. If a student is selected at random from a group of 15 students, where 9 are girls and 6 are boys, what is the probability that the student is a boy? (2023)
Q. If a student is selected at random from a group of 40 students, where 25 are girls and 15 are boys, what is the probability that the selected student is a boy?
Q. In a class of 30 students, 18 are boys and 12 are girls. If one student is selected at random, what is the probability that the student is a girl?
Q. In a family with 3 children, what is the probability that at least one of them is a girl?
Q. In a group of 50 people, 30 like tea, 20 like coffee, and 10 like both. What is the probability that a person chosen at random likes either tea or coffee?
Q. In a lottery, the probability of winning is 0.2. What is the probability of losing?
Q. Two dice are thrown simultaneously. What is the probability that the sum of the numbers on the dice is 7?
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