Practice Data Representation in Statistics

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

Quick Recap

Data representation is the process of organizing and displaying data using charts, graphs, or tables so that patterns, trends, and comparisons become easier to see and understand at a glance.

Raw data is like puzzle pieces scattered on a table - hard to make sense of. When you organize it into charts, graphs, or tables, the picture becomes clear. A bar chart of ice cream preferences instantly shows which flavor wins, while a list of 100 names wouldn't.

Example 1

easy
A class recorded the number of pets owned by each student: 0, 1, 1, 2, 3, 1, 0, 2, 4, 1. Organise this data into a frequency table.

Example 2

easy
Which type of graph would be most appropriate to display the favourite ice-cream flavours of 30 students: a bar graph, a line graph, or a scatter plot? Explain.

Example 3

easy
A student collected data on daily high temperatures (in °C) over two weeks. Should they use a bar graph or a line graph to display this data? Justify your answer.

Example 4

easy
A cafeteria records the number of sandwiches sold each day for six weeks. Which display would best show the overall trend over time: a line graph, a bar graph, or a pie chart? Explain.
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