Data Representation Statistics Example 4
Follow the full solution, then compare it with the other examples linked below.
Example 4
easyA 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.
Solution
- 1 Step 1: The data is numerical and collected in time order over many days.
- 2 Step 2: A line graph best shows changes and trends over time, while a bar graph compares categories and a pie chart shows parts of a whole.
Answer
A line graph is best because it shows how sandwich sales change over time.
Choosing the right representation depends on the data and the question being asked. Time-series data is usually best displayed with a line graph because trends are easier to spot.
About Data Representation
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.
Learn more about Data Representation →More Data Representation Examples
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