Independent Events Probability Worksheet

Work out the following.
When necessary, give your answer in fractions eg. 2/5

1. What is the probability of scoring a total of 18 when three fair dice are rolled? (Hint: the only way of getting a score of 18 is if the three dice shows a 6 each.)



2. Two fair dice, one coloured white and one coloured red, are thrown. Find the probability that:
a) the score on the red die is 2 and white die is 5.


b) the score on the white die is 1 and red die is even.


c) the score on the white die is either 3 or 5.


d) the score on the white die is either 3 or 5 and the red die is odd.


e) both die shows a 4 or 5.



3. Two sets of cards with a letter on each card as follows are placed into separate bags.

Sara randomly picked one card from each bag.
Find the probability that:
a) She picked the letters ‘J’ and ‘R’.


b) Both letters are ‘L’.


c) Both letters are vowels.