UNIPORT Mathematics 2011/2012 Past Questions

Practice each question, then open it to see the full details.

Let A be an event with probability P(A) = 0.14. find the probability of the complement of event

A.0.14
B.-0.86
C.1.0
D.0.86

A box contains 5 blue balls, 4 green balls, is a ball is chosen at random, what is the probability that the ball is either blue or red?

A.3/12
B.5/12
C.8/12
D.15/12
E.1

Solve the system of equation: 2x + y = 32; 3^{3y - x} = 27

A.(3, 2)
B.(-3, 2)
C.(3, 2)
D.(-3, 2)

The chances of three independent events X, Y, Y occurring are 1/2, 2/3, 1/4 respectively, What are the chances of Y and Z only occurring?

A.1/8
B.1/24
C.1/12
D.1/4
E.11/12