Skip to content
OtisamLMS
Core Mathematics

Core Mathematics · Quick practice · answer shown after each question

Probability of combined events

Question 1 of 10

Question 1 of 10

A bag contains 2 red and 6 blue balls. Two balls are picked without replacement. Find P(one of each colour).

Question 2 of 10

Question 2 of 10

A bag contains 7 red and 4 blue balls. Two balls are picked without replacement. Find P(one of each colour).

Question 3 of 10

Question 3 of 10

A bag contains 4 red and 6 blue balls. Two balls are picked without replacement. Find P(one of each colour).

Question 4 of 10

Question 4 of 10

For mutually exclusive events, P(A or B) =

Question 5 of 10

Question 5 of 10

A bag contains 3 red and 6 blue balls. Two balls are picked without replacement. Find P(both blue).

Question 6 of 10

Question 6 of 10

The probabilities that Kofi and Ama pass an examination are 0.6 and 0.5 respectively, independently. Find the probability that (a) both pass, (b) neither passes, (c) only one passes, (d) at least one passes.

Question 7 of 10

Question 7 of 10

A bag contains 5 red and 3 blue balls. Two balls are picked without replacement. Find P(one of each colour).

Question 8 of 10

Question 8 of 10

Two events are independent if

Question 9 of 10

Question 9 of 10

A and B are independent with P(A) = 0.7 and P(B) = 0.1. P(A and B) = ___

Question 10 of 10

Question 10 of 10

A die is thrown twice. P(two sixes) =

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.