Histograms and grouped data
10th grade (Year 11 in England) · 16 questions · Common Core: HSS.ID.A.1 · England: GCSE Higher Statistics
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Question 1
In a histogram, a bar covers a class of width 5 and has frequency density 1. What is the frequency?
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Question 2
Estimate the mean from this grouped table: 0–10: 4, 10–20: 2, 20–30: 4, 30–40: 6. Round to 1 decimal place.
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Question 3
In a histogram, a bar covers a class of width 20 and has frequency density 2.5. What is the frequency?
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Question 4
Estimate the mean from this grouped table: 0–10: 8, 10–20: 9, 20–30: 6, 30–40: 9. Round to 1 decimal place.
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Question 5
In a histogram, a bar covers a class of width 10 and has frequency density 4. What is the frequency?
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Question 6
Estimate the mean from this grouped table: 0–10: 1, 10–20: 8, 20–30: 8, 30–40: 2. Round to 1 decimal place.
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Question 7
In a histogram, a bar covers a class of width 5 and has frequency density 1. What is the frequency?
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Question 8
Estimate the mean from this grouped table: 0–10: 7, 10–20: 4, 20–30: 6, 30–40: 5. Round to 1 decimal place.
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Question 9
In a histogram, a bar covers a class of width 5 and has frequency density 2. What is the frequency?
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Question 10
Estimate the mean from this grouped table: 0–10: 9, 10–20: 1, 20–30: 6, 30–40: 8. Round to 1 decimal place.
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Question 11
In a histogram, a bar covers a class of width 5 and has frequency density 7. What is the frequency?
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Question 12
Estimate the mean from this grouped table: 0–10: 1, 10–20: 4, 20–30: 6, 30–40: 2. Round to 1 decimal place.
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Question 13
In a histogram, a bar covers a class of width 10 and has frequency density 2. What is the frequency?
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Question 14
Estimate the mean from this grouped table: 0–10: 2, 10–20: 3, 20–30: 2, 30–40: 3. Round to 1 decimal place.
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Question 15
In a histogram, a bar covers a class of width 20 and has frequency density 2. What is the frequency?
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Question 16
Estimate the mean from this grouped table: 0–10: 1, 10–20: 3, 20–30: 4, 30–40: 6. Round to 1 decimal place.
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