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Graphs & Data Insights

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Graphs & Data Insights

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📊 Part 1: Reading Graphs

WALT: Interpret bar graphs and pictographs to understand data

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

Rugby: 8 students, Netball: 6 students, Football: 4 students, Cricket: 2 students

Which sport is the most popular?

Rugby

Netball

Football

Cricket

2. How many more students chose rugby than cricket?
3. A pictograph shows pets owned by students. Each 🐕 = 2 pets.

Dogs: 🐕🐕🐕     Cats: 🐕🐕     Fish: 🐕

How many dogs are there in total?

Answer: _______ dogs

4. Which type of pet is the mode (most common)?

Dogs

Cats

Fish

🔢 Part 2: Statistical Measures

Vocabulary Helper:

Mode: The number that appears most often
Median: The middle number when arranged in order
Range: Difference between biggest and smallest numbers
Mean: The average (add all numbers ÷ count of numbers)

5. Here are the heights of plants in centimetres: 12, 15, 12, 18, 13
What is the mode? _______
Put the numbers in order: _____, _____, _____, _____, _____
What is the median (middle number)? _______
What is the range? _______ cm
6. Calculate the mean of these test scores: 8, 6, 10, 8

Mean = _______

7. Complete these sentence starters about the plant data:

The most common height is _______ cm.

The average height is _______ cm.

The difference between tallest and shortest is _______ cm.

🌟 Part 3: Extension Challenge

8. Advanced Task: Students recorded daily temperatures (°C) for a week:

Monday: 18°C, Tuesday: 22°C, Wednesday: 20°C, Thursday: 24°C, Friday: 19°C, Saturday: 21°C, Sunday: 16°C

Calculate all four statistical measures:

Mode: _______°C     Median: _______°C

Range: _______°C     Mean: _______°C

9. Explain what the mean temperature tells us about the week's weather:
10. Create your own simple dataset and calculate the mode:

Suggestion: Number of books read by 5 friends

Mode: _______

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