1997 - WAEC Mathematics Past Questions and Answers - page 5

41
The graph is the cumulative frequency curve for the weight distribution of 100 workers in a factory. Which of the points P,Q,R,S and T indicates the median weight?
A
T
B
S
C
R
D
Q
42

A bag contains red, black and green identical balls. A ball is picked and replaced. The table shows the result of 100 trials. Find the experimental probability of picking a green ball.

A
16
B
21/25
C
1/3
D
4/21
43
The table shows the scores of a group of students in a test. If the average score is 3.5, find the value of x
A
1
B
2
C
3
D
4
44

What is the probability of having an odd number in a single throw of a fair die with the faces numbered 1,2,3,4,5,6?

A
5/6
B
2/3
C
1/2
D
1/3
45
A bag contains 3 white, 6 red, 5 blue identical balls. A ball is picked at random from bag. What is the probability that is either white or blue?
A
9/14
B
4/7
C
3/7
D
5/14
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