1. ASSIGNMENT 2 HUM 3032 ENGINEERING MATHEMATICS 3
GROUPING ASSIGNMENT
(PAIR WORK : 2 PERSONS IN A GROUP)
Question 1
A firm’s monthly sales revenue (in RM’000) for the first six months of 2007 are
given below :
Month Sales Revenue
(RM’000)
January 3.8
February 4.1
March 4.4
April 4.7
May 5.5
June 6.2
Present the above data graphically by using SIMPLE BAR CHART.
Question 2
Consider the following table which gives the number of employees at a company
subdivided into age categories for each 3 years (as of 1 January).
AGE
YEAR
2011 2012 2013
Under 20
20 and under 40
40 and under 60
60 and over
30
150
90
30
40
100
50
10
15
45
75
15
Present the above data graphically by using :
i) COMPONENT BAR CHART
ii) PERCENTAGE COMPONENT BAR CHART
Unit 3 : Statistics
Data in Graphical Form

2. Question 3
Consider the following information concerning absenteeism at three factories; A,
B and C in 2010, 2011 and 2012. Table below shows details of the number of
working days lost due to absenteeism at each factory :
COMPANY
YEAR
2010 2011 2012
A
B
C
40
20
10
40
25
15
60
20
32
Present the above data graphically by using MULTIPLE BAR CHART.
Question 4
Thedata regarding causes of accidentsinfactoriesare given below. Drawa BAR CHART to
represent the data givenabove.
Causes Percentage of Occurence
Faulty machinery
Electrical Disturbance
Delay in Repairs
Mechanical Failure
Others
30%
20%
35%
10%
5%
Answer the following questions:
a) Which cause is responsible for the maximum number of accidents in
factories? Which cause is the minimum?
b) Can you think of one of the “other”causes?
Question 5
A company’s costs for the last year have been broken down as follows :
Salaries and wages
Equipment costs
Raw materials
Miscellaneous costs
COST (RM’000)
500
200
150
50
Present the above data graphically by using PIE CHART.

3. Question 6
In a town, 1800 cars were stolen in a year. The table show information about the
times of day in which they were stolen.
a) Work out the angles for each sector.
b) Construct the PIE CHART.
c) What fraction of cars were stolen between midday and 6pm. Write your
answer in its simplest terms.
All of your working and answers must be done by using computer.
You are required to submit the assignment (hardcopy) within a week.
Due date : 27/3/2014 (Thursday) by 2.00pm
Time Number of cars
Midnight to 6 am 700
6 am to midday 80
Midday to 6 pm 280
6 pm to midnight 470
Time unknown 270