6
7.
The range of the data k + 2, k
3, k + 4, k
2, k, k
5, k + 3, k
1 and k + 6 is
A. 11 B. 10 C. 8 D. 6
8.
The acres of rice, pineapple, cassava, cocoa
and palm oil in a certain district are given
respectively as 2, 5,
3, 11 and 9. What is the
angle of the sector for cassava in a pie
chart.
A. 180
0
B. 36
0
C. 60
0
D. 108
0
9.
The probability of a student passing any
examination is
3
2
. If the student takes three
examinations, what is the
probability that
he will not pass any of them.
A.
9
4
B.
3
2
C.
27
1
D.
27
8
10.
The mean of a set of six numbers is 60. If
the mean of the first five is 50, find the sixth
number in the set.
A. 95
B. 100 C. 110
D. 105
11.
Calculate the mean deviation of the set of
numbers 7, 3, 14, 9, 7 and 8
A.
6
1
1
B.
6
1
2
C.
3
1
2
D.
2
1
2
12.
Music
History
U
80
20
30 - x
40 - x
x
The Venn diagram above shows the number
of students offering Music and History in a
class of 80 students. I
f a student is picked at
random from the class, what is the
probability that he offers Music only.
A. 0.25
B. 0.38 C. 0.50
D. 0.13
13.
Find the mean of the data
7,
-
3, 4,
-
2, 5,
-
9, 4, 8,
-
6, 12
A. 4
B. 3 C. 2 D.
1
14.
No. of
days
1
2
3
4
5
6
No. of
students
20
x
50
40
2x
60
The distribution above shows the number
of days a group of 260 students were
absent from school in a particular term.
How many students were absent for at least
four days in the term.
A. 210
B. 160 C. 120
D. 40
15.
How many
three
-
digit numbers can be
formed from 32564 without any digit being
repeated.
A. 60 B. 120 C. 10 D. 20
16.
Find the derivative of y = sin
2
(5x) with
respect to x.
A. 5 sin5x cos5x B. 2 sin5x cos5x
C. 15 sin5x cos5x D. 10
sin5x cos5x
17.
The slope of the tangent to the curve
y = 3x
2
2x + 5 at the point (1, 6) is
A. 6 B. 5 C. 4 D. 1
18.
Evaluate
.
.
sin 3xdx
A.
c
x
.
.
3
cos
3
1
B.
c
x
.
3
cos
3
1
C.
c
x
.
3
cos
3
2
D.
c
x
.
.
3
cos
3
2
19.
If
x
x
y
1
2
.
.
, find
dx
dy
.
A.
2
1
2
x
x
.
B.
2
2
x
x
.
C.
2
1
2
x
x
.
D.
2
2
x
x
.