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Quiz

Statistics and Data quiz

Bar charts, pie charts and line graphs each answer different questions. Read titles, labels, scales and units before calculating.

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Pick how hard you want the quiz to be. The answer choices are in the question section below.

Multiple choice quiz

Read each question, then choose one answer.

Question 1

Find the mean of 14, 7, 5, 9.

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Question 2

A frequency table has scores 4, 5, 6 and 7 with frequencies 3, 6, 10, 1. Which score is most common?

Scores

Score 43
Score 56
Score 610
Score 71

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Question 3

The bar chart compares two values close to 100 but its vertical axis starts at 90. Why might the differences look misleadingly large?

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Question 4

A scattergraph shows positive correlation between two variables. Explain why this does not prove one variable causes the other.

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Question 5

A frequency table has a total frequency of 33. Find the missing frequency.

Journey-time frequency table

Time (minutes)Frequency
0–95
10–1910
20–29?
30–399

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Question 6

A line of best fit estimates pay as 4 × hours + 12. Estimate the pay for 5 hours.

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