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Statistics and Data Interpretation

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Statistics and Data Interpretation

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📊 Part 1: Reading Graphs

WALT: Understand and interpret data from graphs

Success Criteria: I can explain what a graph shows and identify patterns in the data

1. Look at this bar graph showing favourite sports in Year 4:

Rugby: 8 students, Netball: 6 students, Football: 10 students, Cricket: 4 students, Swimming: 7 students

Which sport is the most popular? ________________

How many students chose cricket? ________________

How many more students chose football than cricket? ________________

2. What does this data tell us about our class?

Most students prefer team sports

Nobody likes swimming

Cricket is very unpopular

All sports are equally liked

3. Circle the correct vocabulary word:

The sport chosen by the most students is called the (mean / mode / median / range).

🔢 Part 2: Statistical Measures

4. Here are the number of pets owned by 7 students: 2, 0, 3, 1, 2, 4, 2

First, put the numbers in order from smallest to largest:

____, ____, ____, ____, ____, ____, ____

Mode (most common number): ________________

Median (middle number): ________________

Range (biggest number - smallest number): ________________

5. Match the vocabulary to its meaning:
Mean
Mode
Median
Range
The middle number when sorted
The average of all numbers
The most frequent number
Difference between highest and lowest
6. Calculate the mean for this data: 4, 6, 8, 2

Mean = ________________

🎯 Part 3: Data Investigation

7. Plan a survey question you could ask your classmates:
8. Predict what you think the mode might be for your survey question and explain why:
9. Extension Challenge: If one student in the pets data (question 4) got 2 more pets, how would this change the mean? Show your working:
10. Reflection: How could understanding data about favourite activities help our school plan better events?

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