Measures of Dispersion MCQs (Statistical Data in Social Science)
Measures of Dispersion MCQs (Statistical Data in Social Science)
These Measures of Dispersion multiple-choice questions and their answers will help you strengthen your grip on the subject of Measures of Dispersion. You can prepare for an upcoming exam or job interview with these 40+ Measures of Dispersion MCQs.
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1: A way to graphically represent a distribution using the 25th percentile, 50th percentile (median), and 75th percentile is called _____.
A. Box plot
B. Histogram
C. Bar graph
D. Dot plot
2: The degree to which cases are clustered around a specific value, usually the meanis called _____.
A. Dispersion
B. Mean
C. Median
D. Box plot
3: The difference between the values at the third and first quartiles in a distribution is called Interquartile range.
A. True
B. False
4: The mathematical average of deviations from the mean (measured in absolute values)is called ______.
A. Mean deviation
B. Standar deviation
C. Absolute deviation
D. Variance
5: A group of statistics that describe how tightly or loosely distribution cases are clustered is called Measures of dispersion.
A. True
B. False
6: A bell-shaped symmetrical distribution of cases is called _____.
A. Normal curve
B. Bell curve
C. Skew curve
D. Density curve
7: The difference between the values of the highest and lowest cases in a distribution is called ______.
A. Range
B. Xrange
C. Domain
D. Variance
8: The square root of the mathematical average of squared deviations from the mean. It is the square root of the variance is called ______deviation.
A. Standard
B. Mean
C. Variance
D. Standard error
9: The mathematical average of the squared deviations from the mean is called _____.
A. Variance
B. Mean
C. Median
D. Range
10: Graphical technique to display the distribution of a variable that is part of the exploratory data analysis (EDA) family is known as Boxplot.
A. True
B. False
11: IQR is a measure of dispersion appropriate for interval/ ratio-level data. It measures the range of scores in the middle 50% of a distribution of continuous scores and is calculated as the difference between the score at the third quartile (the 75th percentile) and the score at the _____ percentile.
A. 25
B. 50
C. 75
D. 100
12: Mean Deviation Score is the distance between a score and the _____ of the group of scores.
A. Mean
B. Sum of mean
C. Square of mean
D. Sum of square of mean
13: ______ capture how different the values of a variable are.
A. Measure of Deviation
B. Measure of Dispersion
C. Measure of Variability
D. None of these
14: Q1 is ______ percentile in a distribution of scores.
A. 25
B. 75
C. 50
D. 100
15: Q2 is the second quartile or the 50th percentile, also called the_____ , in a distribution of scores.
A. Mean
B. Median
C. Mode
D. Range
16: Q3 is the ______percentile in a distribution of scores.
A. 25
B. 50
C. 75
D. 100
17: Range is a measure of dispersion appropriate for ______ level data.
A. Interval
B. Ratio
C. Both
D. None
18: Square root of the squared deviations about the mean is known as _____
A. Variance
B. Standard Deviation
C. Standard Error
D. None of these
19: Variance measures the ______ deviations from the mean for an interval/ratio variable.
A. Summed squared
B. Average squared
C. Average square root
D. None of these
20: Appropriate measure of dispersion to use when variables are measured at the _____ level is known as Variation Ratio.
A. Nominal
B. Ordinal
C. Interval
D. Both a and b
21: Dispersion and range are synonymous.
A. True
B. False
22: The variation ratio can be used with nominal and ordinal data.
A. True
B. False
23: One of the range’s weaknesses as a measure of dispersion is that it is complicated to calculate.
A. True
B. False
24: The bounding rule states that proportions always range from 0.00 to 1.00.
A. True
B. False
25: Which of the following is NOT a measure of dispersion?
A. Range
B. Variation ratio
C. Mode
D. Standard deviation
26: Which of the following is the most important measure of dispersion?
A. Standard deviation
B. Variance
C. Standard deviation and variance
D. None of these
27: The variance can be used with which of the following types of data?
A. Continuous
B. Categorical
C. Continuous and categorical
D. None of these
28: The variation ratio informs us about which of the following?
A. Where the data clusters
B. How far the data is from the mean
C. Where data is most frequently is occurring
D. The range of the data
29: Which of the following provides the definition for the standard deviation?
A. The range of a data set
B. The distance between individual raw scores and the mean
C. The normal distribution
D. All of these
30: In relation to the standard deviation what is the fundamental idea behind the normal distribution?
A. Many standard deviation values exist throughout the distribution.
B. All values in the distribution are distributed normally.
C. Data in the distribution are distributed normally.
D. Two-thirds of the scores in the distribution lie one standard deviation above or below the mean.
31: Which of the following statements regarding deviation scores are true?
A. We often end up with too many numbers.
B. A summary statistic that represents all scores is needed.
C. The sum of all deviation scores always equals zero.
D. All of these
32: Why are measures of dispersion important in statistics?
A. They tell us averages.
B. They provide information that measures of central tendency do not.
C. These measures are not important in statistics.
D. They explicitly help us organize data.
33: The range is calculated using what type of scores?
A. Frequency scores
B. Z-scores
C. Raw scores
D. T-scores
34: The formula to calculate the standard deviation involves the square root.
A. True
B. False
35: Which of the following numbers is NOT a standard deviation score?
A. 5.47
B. –6.34
C. 1.34
D. 0.25
36: _____ is the rule stating that all proportions range from 0.00 to 1.00.
A. Where two lines bisect each other
B. None of these
C. Bounding rule
D. The point in which the line crosses the Y-axis
37: _____ is defined as the amount of spread or variability among the scores in a distribution.
A. Dispersion
B. All of these
C. Coefficient of determination
D. Sign
38: _____ is known as a measure of how much a distribution curve’s width departs from normality.
A. None of these
B. Kurtosis
C. The DV
D. The quality of predictions
39: Is leptokurtosis a measure of how peaked or clustered a distribution is?
A. False
B. True
40: _____ is A measure of how flat or spread out a distribution is.
A. None of these
B. Platykurtosis
C. They employ the mode.
D. The employ the t distribution.
41: _____ is defined as A measure of dispersion for continuous variables that is calculated by subtracting the smallest score from the largest. Symbolized as R.
A. None of these
B. Range
C. The intercept
D. The standardized beta
42: _____ is known as based on the bounding rule, the rule stating that the proportion of cases that are not in a certain category can be found by subtracting the proportion that are in that category from 1.00.
A. Rule of the complement
B. Dichotomized
C. Continuous
D. None of these
43: Is standard deviation computed as the square root of the variance, a measure of dispersion that is the mean of the deviation scores. Notated as s or sd?
A. True
B. False
44: _____ is a measure of dispersion calculated as the mean of the squared deviation scores. Notated as s2.
A. Variance
B. None of these
C. The mean
D. The z distribution
45: _____ is defined as a measure of dispersion for variables of any level of measurement that is calculated as the proportion of cases located outside the modal category. Symbolized as VR.
A. Variation ratio
B. 1
C. 2
D. All of these
Measures of Dispersion MCQs (Statistical Data in Social Science)
