🌱 Part 1: Understanding Statistical Measures

1. Match each statistical measure with its correct definition:

1. Mean

2. Median

3. Mode

A. The middle value when data is ordered

B. Add all values and divide by number of values

C. The most frequently occurring value

2. Circle the correct answer: Which measure of centre is most affected by extreme values?

Mean

Median

Mode

📊 Part 2: Calculating with Environmental Data

3. Your group collected the following temperature data (°C) over 7 days: 18, 22, 19, 25, 20, 19, 21

Calculate the mean temperature:

Find the median temperature:

First, order the data: _____, _____, _____, _____, _____, _____, _____

The median is: ______°C

Identify the mode:

4. Plant species count in different areas: 8, 12, 15, 8, 10, 13, 8, 11

Mean: _________ species

Median: _________ species

Mode: _________ species

📈 Part 3: Data Visualisation

5. Which type of graph would be most appropriate for each data type? Draw lines to match:

Temperature over time

Number of different bird species

Rainfall amounts each day

Bar graph

Line graph

Pictograph

6. Create a simple bar graph for this data in the space below:

Rubbish items found: Plastic bottles: 12, Paper: 8, Cans: 5, Food wrappers: 15

🌍 Part 4: Environmental Interpretation

7. Check all the ways that data analysis can help protect our environment:

Identify pollution trends

Track changes in wildlife populations

Monitor air and water quality

Plan conservation efforts

Make informed decisions about land use

8. Your group found that the average number of native birds in the school grounds is 6 per day, but in the nearby reserve it's 18 per day. What might this data tell us about our environment?

9. Fill in the blanks using appropriate statistical vocabulary:

When we collected data on plant heights, we found that the _________ height was 45cm, which means this was the most common measurement. The _________ height was 42cm, showing the middle value when all heights were arranged in order. The _________ height was 44cm, calculated by adding all measurements and dividing by the total number of plants.

10. As kaitiaki (guardians) of our environment, explain how you could use statistical data to help protect a local ecosystem: