Question

Question 2: 3600 people who work in Bloemfontein were asked about the means of transport they used for daily commuting.

The data collected is shown in Table 2 below.

Table 2: Means of Transport of Commuters

Type of Transport and Frequency of Response

Private Car 1800

Bus 900

Train 300

Other 600

Using data from this table, do the following:

c) Represent this information on a pie chart.

d) Represent this information with a bar chart diagram.

e) Draw conclusions from the results.

f) What is the difference between a histogram and a bar chart?

Answer 1

c) The pie chart is:

Frequency of Response 600 300 1800 900 Private Car Bus Train Other

d) The bar chart is:

Frequency of Response 2000 1800 1600 1400 1200 1000 1800 800 600 900 600 400 200 0 300 Private Car Bus Train Other • Frequency of Response

e) From the charts, we can say that half of the people in the sample who work in Bloemfontein used private car for daily commuting, the second frequent response being Bus with 900 respondents, the next being train with 300 respondents and rest of the people using other means of transport. Hence, private car and bus are the mostly used daily commuting means of transport.

f) The difference between a histogram and a bar chart is that while the histogram shows distributions of variables plotting quantative data with the ranges of the data grouped into bins/intervals while bar charts are used to compare variables which plot categorical data.