23
Using your calculator, work through these exercises to gauge your mathematics
skills and ‘calculator skills’.
1. Evaluate (a)
8
18
C (b)
5
11
P (c) 9!
2. What is the output of Pol (3,4)? How about Pol (6,8) and Pol (12,5)?
3. The following is the Mathematics test scores of 30 students.
37 38 38 39 41 45 45 45 45 49
54 57 57 57 62 66 70 72 77 77
79 79 79 88 90 90 90 92 95 98
Find (a)
∑
x , (b) mean, (c) standard deviation.
4.
AOB is a sector of a circle with centre at O and radius 5.2cm.
Given that
AOB∠ =
7
π
, find the area of the shaded region.
5. In how many ways can 12 students sit in 5 chairs arranged in a row?
6. A golf club has 32 members which includes 5 doctors, 4 lawyers and 3 engineers. In how
many ways can a committee of 5 be chosen if it is to contain one of each of these
professions.
7.
ABC is a triangle in which AC = 6.4cm, BC = 10cm
and AB = 5.5cm. Find
(a)
ABC
(b) BAC
sin .
To check answers please see page 20 of this booklet.
uick Check
2
A
O
B
5.2cm
7
π
10cm
5.5cm
6.4cm
B
C
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