Question Tag: Coefficient of Variation

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QTB – MAY 2016 – L1 – SA – Q11 – Statistics

Calculate variance given Coefficient of Variation and mean score

In a QTB examination, where the maximum possible mark in a question is 20 marks
and the Coefficient of Variation is given as 25%, find the variance if the mean score is

A. 3
B. 9
C. 12
D. 15
E. 18

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QT – May 2018 – L1 – Q6b – Measures of Central Tendency

Calculation of central tendency measures and coefficient of variation based on bi-weekly income data.

 

 

The table below shows the range of bi-weekly income of a sample of 50 accountants of a multi-national accounting firm:

Range of Income (GH₵) Number of Accountants
80 and Less than 100 5
100 and less than 120 4
120 and less than 150 12
150 and less than 170 7
170 and less than 200 8
200 and less than 250 9
250 and less than 300 5

Required:
i) Compute all the THREE measures of central tendency of the range of income and comment on the distribution. (8 marks)
ii) Compute the coefficient of variation of the range of income of the accountants. (7 marks)
iii) Interpret your answer in (ii). (1 mark)

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QTB – MAY 2016 – L1 – SA – Q11 – Statistics

Calculate variance given Coefficient of Variation and mean score

In a QTB examination, where the maximum possible mark in a question is 20 marks
and the Coefficient of Variation is given as 25%, find the variance if the mean score is

A. 3
B. 9
C. 12
D. 15
E. 18

Login or create a free account to see answers

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You're reporting an error for "QTB – MAY 2016 – L1 – SA – Q11 – Statistics"

QT – May 2018 – L1 – Q6b – Measures of Central Tendency

Calculation of central tendency measures and coefficient of variation based on bi-weekly income data.

 

 

The table below shows the range of bi-weekly income of a sample of 50 accountants of a multi-national accounting firm:

Range of Income (GH₵) Number of Accountants
80 and Less than 100 5
100 and less than 120 4
120 and less than 150 12
150 and less than 170 7
170 and less than 200 8
200 and less than 250 9
250 and less than 300 5

Required:
i) Compute all the THREE measures of central tendency of the range of income and comment on the distribution. (8 marks)
ii) Compute the coefficient of variation of the range of income of the accountants. (7 marks)
iii) Interpret your answer in (ii). (1 mark)

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You're reporting an error for "QT – May 2018 – L1 – Q6b – Measures of Central Tendency"

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