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 11
A bag contains 3 red balls and 2 blue balls. If one ball is drawn at random, what is the probability that it is blue?
A box contains 5 white, 3 black, and 2 green balls. If one ball is picked at random, what is the probability that it is not black?
A card is drawn from a standard deck of 52 cards. What is the probability that it is a king?
A coin is tossed three times. What is the probability of getting exactly two heads?
A die is rolled twice. What is the probability that both times an even number appears?
A family has two children. What is the probability that both are boys?
A letter is chosen at random from the word 'PROBABILITY'. What is the probability that it is a vowel?
A number is chosen at random from 1 to 10. What is the probability that it is a prime number?
Explain the difference between dependent and independent events.
Explain what is meant by equally likely outcomes.
If a card is drawn at random from a standard deck, what is the probability that it is either a heart or a king?
If an event can occur in 3 ways and another independent event can occur in 4 ways, in how many ways can both occur together?
If P(A) = 0.4 and P(B) = 0.5 and A and B are mutually exclusive, what is P(A or B)?
If P(A) = 0.6, P(B) = 0.5, and P(A and B) = 0.3, what is P(A or B)?
If the probability of an event A is 0.7, what is the probability of the event 'not A'?
If the probability of an event is 0, what does it mean?
If the probability of winning a game is 0.3, what is the probability of losing the game?
If two dice are thrown together, what is the probability that the sum is 7?
State the difference between experimental probability and theoretical probability.
What is the probability of getting a head when tossing a fair coin once?
