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Measures of Dispersion MCQs for Competitive Exams

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Measures of Dispersion MCQs for Competitive Exams

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Topic Notes: Measures of Dispersion

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

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Measures of Dispersion MCQs in Commerce are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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21
Which of the following measures of central tendency is generally not used as a base for calculating dispersions?
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22
What is the mathematical relationship between Mean Deviation and Standard Deviation (SD) for a normal distribution?
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23
Mean Deviation is which part of Standard Deviation?
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24
Which measure of dispersion is most appropriate when dealing with open-ended class intervals in a frequency distribution?
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25
What is the standard formula used to calculate Bowley's Coefficient of Skewness?
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26
How does the standard deviation behave when the dispersion of a data set is small?
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27
Is the coefficient of variation considered an absolute or relative measure of dispersion?
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28
Given that the first two moments of a variable about the value 2 are 1 and 16, what is the variance?
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29
If the standard deviation of variable X is 's', and a new variable Y is defined as Y = a + bX, where 'a' and 'b' are constants, what is the standard deviation of Y?
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30
Given a symmetrical distribution where the first quartile (Q1) is 142 and the semi-interquartile range (QD) is 18, what is the value of the median?
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