Statistical Calculations

QTB – May 2017 – L1 – SA – Q9 – Data Collection Analysis

This question identifies the reasons why the mean is preferred for statistical calculations.

Question

The mean is the most commonly used statistics for further statistical calculations because it:
A. Tends to lie at the centre of a set of data
B. Is easy to calculate
C. Takes all observations in the data into consideration
D. Is the most popular
E. Is not affected by extreme values in the data

Answer

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Tags: Central Tendency, Mean Calculation, Statistical Calculations
Level: Level 1

Topic: Data Collection Analysis
Series: MAY 2017

QTB – MAY 2016 – L1 – SA – Q12 – Statistics

Calculate the difference between median and range for a given set of numbers

Question

The difference between the median and the range of the set of numbers: 18,
25, 48, 26, 36, 55, 42, 12, 38, 27, 64, 58, 20, 58, 30, 40, is

A. -19
B. -17
C. -15
D. 6
E. 25

Answer

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Tags: Median, Range, Statistical Calculations
Level: Level 1

Topic: Statistics
Series: MAY 2016

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

Calculate variance given Coefficient of Variation and mean score

Question

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

Answer

Find Related Questions by Tags, levels, etc.

Tags: Coefficient of Variation, Statistical Calculations
Level: Level 1

Topic: Statistics
Series: MAY 2016

QTB – May 2017 – L1 – SA – Q9 – Data Collection Analysis

This question identifies the reasons why the mean is preferred for statistical calculations.

Question

Answer

Find Related Questions by Tags, levels, etc.

Tags: Central Tendency, Mean Calculation, Statistical Calculations
Level: Level 1

Topic: Data Collection Analysis
Series: MAY 2017

QTB – MAY 2016 – L1 – SA – Q12 – Statistics

Calculate the difference between median and range for a given set of numbers

Question

The difference between the median and the range of the set of numbers: 18,
25, 48, 26, 36, 55, 42, 12, 38, 27, 64, 58, 20, 58, 30, 40, is

A. -19
B. -17
C. -15
D. 6
E. 25

Answer

Find Related Questions by Tags, levels, etc.

Tags: Median, Range, Statistical Calculations
Level: Level 1

Topic: Statistics
Series: MAY 2016

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

Calculate variance given Coefficient of Variation and mean score

Question

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

Answer

Find Related Questions by Tags, levels, etc.

Tags: Coefficient of Variation, Statistical Calculations
Level: Level 1

Topic: Statistics
Series: MAY 2016

Question Tag: Statistical Calculations

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QTB – May 2017 – L1 – SA – Q9 – Data Collection Analysis

This question identifies the reasons why the mean is preferred for statistical calculations.

QTB – MAY 2016 – L1 – SA – Q12 – Statistics

Calculate the difference between median and range for a given set of numbers

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

Calculate variance given Coefficient of Variation and mean score

QTB – May 2017 – L1 – SA – Q9 – Data Collection Analysis

This question identifies the reasons why the mean is preferred for statistical calculations.

QTB – MAY 2016 – L1 – SA – Q12 – Statistics

Calculate the difference between median and range for a given set of numbers

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

Calculate variance given Coefficient of Variation and mean score

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