20,201.
A.
2/11
B.
5/11
C.
6/11
D.
9/11
E.
2/3
Correct answer is A
S = {20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30}
n(S) = 11
P = {23, 29}
n(P) = 2
Prob(P) = \(\frac{2}{11}\)
20,202.
How many students scored less than 7 marks?
A.
9
B.
15
C.
18
D.
21
E.
25
Correct answer is B
= 2 + 4 + 3 + 6
= 15 students scored less than 7 marks.
20,203.
How many student took the examination
A.
18
B.
20
C.
21
D.
23
E.
24
Correct answer is E
= 2 + 4 + 3 + 6 + 6 + 2 + 1
= 24 students
20,204.
| Bendel | 45 |
| kwara | 410 |
| Ogun | 105 |
| Ondo | 126 |
| Oyo | 154 |
In a pie chart drawn to represent this distribution, the angle subtended by Ondo is
A.
36o
B.
42o
C.
45o
D.
48o
E.
54o
Correct answer is E
Ondo = \(\frac{126}{840} \times 360°\)
= \(54°\)
20,205.
Find the median of the set of numbers 12, 15, 13, 14, 12, 12.
A.
12
B.
12.5
C.
13
D.
13.5
E.
14
Correct answer is B
12, 12, 12, 13, 14, 15
Median = \(\frac{12 + 13}{2}\)
= 12.5
WAEC Subjects
Aptitude Tests