Data Visualisation Skills Worksheet

Name:

Date:

📊 Part 1: Choosing the Right Graph

1. Which type of graph would be BEST for showing student favourite subjects in your class?

Time-series graph

Bar graph

Scatter plot

Line graph

2. You want to show how Auckland's temperature changed over the last 7 days. Which graph type should you use?

Bar graph

Dot plot

Time-series graph

Pie chart

3. Which of these are important ethical considerations when collecting data? (Select all that apply)

Getting permission from participants

Making sure questions aren't biased

Only collecting data that supports your opinion

Keeping personal information private

4. A dot plot is most useful for showing:

Changes over time

The distribution and frequency of numerical data

Percentages of a whole

Relationships between two variables

📈 Part 2: Interpreting Data Visualisations

5. Look at this data about books read by Year 8 students in one month:
Books Read: 0, 1, 1, 2, 2, 2, 3, 3, 4, 5, 6
What is the mode of this data set?

Mode = _______

6. Describe one trend you might expect to see in a time-series graph showing ice cream sales throughout the year in New Zealand:

7. A bar graph shows that 15 students chose pizza, 8 chose burgers, and 12 chose fish and chips as their favourite lunch. What can you conclude about the most popular choice?

8. Explain why it would be unethical to ask this survey question: "Don't you think homework is terrible and should be banned?"