Measuring & Analyzing Data

Name:

Date:

📊 Part 1: Understanding Data

1. Which type of graph would be best to show the favourite sports of students in your class?

Line graph

Bar graph

Scatter plot

Pie chart

2. The average (mean) of five numbers is 12. Four of the numbers are: 10, 15, 8, and 14. What is the fifth number?

3. Which measures of central tendency can be affected by outliers? (Select all that apply)

Mean

Median

Mode

Range

4. The following temperatures were recorded in Auckland over 5 days: 18°C, 22°C, 19°C, 21°C, 20°C

Calculate:

a) Mean temperature: ________°C

b) Median temperature: ________°C

c) Range of temperatures: ________°C

5. A group of students measured their heights in centimetres: 145, 152, 148, 156, 145, 150, 145

What is the mode of these heights? _________

Explain why you chose this answer:

6. Create a tally chart for the following data about favourite ice cream flavours:

Chocolate, Vanilla, Strawberry, Chocolate, Vanilla, Chocolate, Strawberry, Chocolate, Vanilla, Vanilla