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## First Year Statistics Chapter 4 Online MCQ Test for 1st Year Statistics Chapter 4 (Measure of Dispersion)

This online test contains MCQs about following topics:

Introduction to measures of dispersion . Co-efficent of variation an other relative measures . Moments . Sheppard's correction for grouping error . Skewness

#### ICS Part 1 Statistics Chapter 4 Test

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### First Year Statistics Chapter 4 Online MCQ Test for 1st Year Statistics Chapter 4 (Measure of Dispersion)

1 The variance of constant is always
• A. Constant
• B. One
• C. Positive
• D. Zero
2 <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">β<sub>1</sub> is a quantity</span>
• A. Dimensional
• B. Dimension less
• C. Positive
• D. Negative
3 The positive square root of the mean of the squares of deviations of values from their mean is
• A. Variance
• B. Covariance
• C. Standard deviation
• D. Standard error
4 The most popular measure of dispersion in industry and meteorology is.
• A. Range
• B. Quartile deviation
• C. Mean deviation
• D. Standard deviation
5 The sum of squares of deviations is a minimum if these deviations are taken from the.
• A. Mean
• B. Mode
• C. Median
• D. All of these
6 The compare the variation of two or more than two sereies, we use.
• A. Mean absolute deviation
• B. Variance
• C. Coefficient of viariation
• D. Corrected atandard deviation
7 The value of quartile deviation is always
• A. Positive
• B. Zero
• C. Negative
• D. None of these
8 The distribution is symmetrical if the moment coefficient of skewense b1 is.
• A. Negative
• B. Postive
• C. 3
• D. 0
9 If the third moment about mean is zero ( m3 = 0) , then the distribution is.
• A. Mesokurtic
• B. Positively skewed
• C. Symmetrical
• D. Negatively skewed
10 M.D. of the values 4,4,4,4 is
• A. 0
• B. 4
• C. 8
• D. 12

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13 Dec 2017

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