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Data Visualisation Basics
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Data Visualisation Basics
Use the data provided to make and interpret graphs. Label graphs clearly and use mathematical vocabulary in your written answers.
Create and interpret graphs
1.At a train station, 18 Year 8 students were asked how many pets they have. Make a dot plot of the results. Include a title, labelled axis and key if needed.
Data (number of pets): 0, 1, 2, 0, 3, 1, 1, 0, 2, 1, 4, 0, 1, 2, 1, 0, 3, 1
2.Students waiting at the station chose their favourite sport. Make a bar graph from the frequency table. Include a title, labelled axes and an even scale.
Sport
Number of students
Rugby
7
Netball
5
Football
4
Basketball
2
3.Using the pet data in Question 1, which number of pets is the mode?
4.Use the favourite-sport frequency table. Which sport has the highest frequency, and which has the lowest frequency?
5.Select all statements that are accurate descriptions of graphs.
- A dot plot can show each individual data value.
- Bars in a bar graph for categories are usually separated by gaps.
- Every graph axis must start at zero, without exception.
- Graphs can help reveal patterns in a data set.
6.Describe one pattern in the pet data. Support your observation with a frequency or comparison.
Use and explain statistical vocabulary
7.Match each term to its meaning.
- Frequency
- Category
- Scale
- Mode
- Data
- Axis
- A group or type used to organise data
- The value or category that occurs most often
- A reference line on a graph, usually showing categories or values
- How many times a value or category occurs
- Information collected for analysis
- The labelled intervals used to measure values on an axis
8.Write a three- or four-sentence summary of the favourite-sport data. Use at least three of these terms: frequency, category, mode, compare, data, pattern.
9.Give two reasons why a graph needs clearly labelled axes.
3 printable pages
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