Averages (OCR GCSE Maths): Quizzes

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Averages and Measures of Spread
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12 questions from this quiz

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What is the mean of the data set: 4,6,8,10,124, 6, 8, 10, 12?

88

What is the median of: 3,1,9,7,53, 1, 9, 7, 5?

55

Find the median of: 2,4,6,82, 4, 6, 8

55

What is the mode of: 2,4,4,5,6,6,6,72, 4, 4, 5, 6, 6, 6, 7?

66

What is the range of: 12,7,5,15,912, 7, 5, 15, 9?

1010

What does a small range indicate about a data set?

Data is more consistent

What is the mid-point of the group 0x<50000≤x<5000?

25002500

Andrew Flintoff's cricket scores had a median of 3232 and range of 7676. What does this suggest?

Consistent performance

Michael Vaughan's mode was 00. What does this indicate?

He often scored no runs

What is a disadvantage of using the median?

Doesn't use all data

What is a disadvantage of using the range?

Heavily affected by outliers

In grouped data, estimated mean = ?

(m×f)f\frac{∑(m×f)}{∑f}

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