- IB
- Question Type 3: Using simple experiments to calculate probabilities
Two fair six-sided dice are rolled. Calculate the probability that the sum is 7.
[3]A spinner has 5 equal sectors labelled R, B, G, Y and K. It is spun 3 times. Find the probability of landing on G exactly twice.
[3]Two cards are drawn from a standard deck without replacement. Calculate the probability that both cards are kings.
[4]A single card is drawn from a standard deck of 52 cards. What is the probability of drawing an ace?
[2]A bag contains 4 green and 6 yellow marbles. A marble is drawn, replaced, and then another marble is drawn. What is the probability that at least one of the two drawn marbles is green?
[4]A fair coin is tossed 4 times. Calculate the probability of obtaining exactly 2 heads.
[3]A fair coin is tossed 4 times. Calculate the probability of not getting exactly 2 heads.
[3]A fair six-sided die is rolled 3 times. What is the probability of rolling exactly one 4?
[3]A bag contains 5 red, 3 blue and 2 green marbles. One marble is drawn at random. What is the probability it is red?
[2]A fair six-sided die is rolled 3 times. Find the probability of getting at least one 4.
[3]Two fair six-sided dice are rolled. Find the probability that the sum is at least 10.
[3]From the bag with 5 red, 3 blue and 2 green marbles, two marbles are drawn without replacement. Calculate the probability that both are blue.
[2]