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 7
A bag contains 10 balls numbered 1 to 10. What is the probability of picking a ball with a number greater than 8?
A bag contains 4 black and 6 white balls. If one ball is picked at random, what is the probability it is not black?
A bag contains 5 red, 3 blue, and 2 green balls. What is the probability of picking a red or green ball?
A bag contains 8 blue and 2 green marbles. What is the probability of picking a marble that is not green?
A bag contains 10 balls numbered 1 to 10. What is the probability of picking a ball with a number greater than 8?
A bag contains 4 black and 6 white balls. If one ball is picked at random, what is the probability it is not black?
A bag contains 5 red, 3 blue, and 2 green balls. What is the probability of picking a red or green ball?
A bag contains 8 blue and 2 green marbles. What is the probability of picking a marble that is not green?
Which of the following events is most likely to happen? (1) Getting a 7 on a standard die (2) Getting a head on a coin toss (3) Picking a red ball from a bag with only red balls (4) Getting a number less than 0 on a die
Which of the following is a certain event? (1) Getting a number less than 7 on a standard die (2) Getting a head on a coin (3) Getting a 7 on a standard die (4) Getting a red ball from a bag with only blue balls
Which of the following is a random experiment? (1) Measuring the length of a table (2) Tossing a coin (3) Reading a book (4) Writing your name
Which of the following is an impossible event? (1) Getting a number less than 7 on a standard die (2) Getting a head or tail on a coin (3) Getting a 10 on a standard die (4) Drawing a card from a deck
Fill in the blank: Probability is always a number between _______ and _______.
Fill in the blank: The probability of a certain event is _______.
Fill in the blank: The probability of an event plus the probability of its complement is _______.
Fill in the blank: The probability of an event that is neither certain nor impossible is _______.
True or False: Probability can never be negative.
True or False: The probability of an event and its complement always add up to 1.
True or False: The probability of an event can be written as a percentage.
True or False: The probability of an event is always a fraction or decimal between 0 and 1.
