Theoretical Probability Quiz

A bag contains 10 red marbles, 8 blue marbles and 2 yellow marbles. Find the theoretical probability of getting a blue marble.

A basket contains 15 apples: 5 are red, 6 are green, and 4 are yellow. A fruit is randomly selected from the basket. What is the theoretical probability that the fruit selected will be green?

A card is drawn from a well-shuffled deck of 52 playing cards. What is the probability that the card is not a king?

A student takes a multiple-choice quiz with 20 questions. Each question has 4 options, and only one option is correct. If the student guesses all answers, what is the probability that the student does not answer a question correctly?

A die is rolled. What is the probability that the number rolled is not 4?

A box contains 5 red marbles, 3 blue marbles, and 2 yellow marbles. A marble is randomly selected. What is the probability that the marble is not blue?

A box contains 12 red pens, 7 blue pens, and 5 black pens. A pen is randomly selected. What is the probability that the pen selected is not black?

You spin the spinner show below once. The spinner has 4 equal sectors coloured pink, purple, blue and green. What is P(green)?

You randomly draw a marble from a bag of marbles that contains 8 blue marbles, 5 green marbles, and 8 red marbles. What is P(draw a blue or red marble)?

Find the probability of rolling an even number when you roll a die containing the numbers 1-6. Express the probability as a fraction, decimal, ratio and percent.