Probability
Math ⇒ Statistics and Probability
Probability starts at 7 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Probability.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 8
A bag contains 10 balls numbered 1 to 10. What is the probability of picking a ball with an odd number?
A bag contains 3 red balls and 2 blue balls. What is the probability of picking a blue ball at random?
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?
A bag contains 5 red, 4 blue, and 1 yellow marble. What is the probability of picking a marble that is either red or yellow?
A bag contains 7 red, 2 blue, and 1 green marble. What is the probability of picking a marble that is not red?
A box contains 5 green, 3 yellow, and 2 red marbles. What is the probability of picking a yellow marble?
A bag contains 10 balls numbered 1 to 10. What is the probability of picking a ball with an odd number?
A bag contains 3 red balls and 2 blue balls. What is the probability of picking a blue ball at random?
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?
A bag contains 5 red, 4 blue, and 1 yellow marble. What is the probability of picking a marble that is either red or yellow?
Which of the following best describes probability? (1) A measure of certainty (2) A measure of chance (3) A measure of time (4) A measure of distance
Which of the following events is most likely to occur? (1) Probability = 0.1 (2) Probability = 0.5 (3) Probability = 0.9
Which of the following is a valid probability value? (1) -0.2 (2) 0.5 (3) 1.2 (4) 2
Which of the following is NOT a possible probability? (1) 0 (2) 1 (3) 1.5 (4) 0.75
If an event is certain to happen, its probability is ________.
If the probability of an event is 0, the event is ________.
True or False: Probability can never be greater than 1.
True or False: Probability is always expressed as a number between 0 and 1, inclusive.
True or False: The probability of an event and its complement always add up to 1.
True or False: The probability of an event and its complement is always 1.
