Computing and Understanding Averages in Statistics MCQs
Computing and Understanding Averages in Statistics MCQs
These Computing and Understanding Averages in Statistics multiple-choice questions and their answers will help you strengthen your grip on the subject of Computing and Understanding Averages in Statistics. You can prepare for an upcoming exam or job interview with these 20 Computing and Understanding Averages in Statistics MCQs.
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1: Seven students reported the following individual earnings from their sale of books: $7, $13, $3, $5, $2, $9, and $3. In this distribution of earnings, the mean is ______.
A. 7
B. 3
C. 5
D. 6
2: The value that best represents an entire group of scores is the ______.
A. Mean
B. Median
C. Mode
D. Average
3: Imagine that 86,999 penniless people live in the town of Centerville. Bill Gates, whose net worth is $87,000,000,000 moves into Centerville. Now the mean net worth is ______ and the median net worth is ______.
A. 0; 0
B. 0; $1,000,000
C. $1,000,000; 0
D. $1,000,000; $1,000,000
4: This measure of central tendency can be considered the most precise:
A. Mode
B. Median
C. Mean
D. None of these
5: During the past year, Cindy and Bobby each read 2 books, but Greg read 25, Jan read 12, and Marcia read 9. The median number of books read by these individuals is ______.
A. 2
B. 9
C. 10
D. 50
6: Seven students reported the following individual earnings from their sale of books: $7, $13, $3, $5, $2, $9, and $3. In this distribution of individual earnings, the mean is ______ the mode and ______ the median.
A. Equal to; equal to
B. Greater than; equal to
C. Equal to; less than
D. Greater than; greater than
7: The ______ is calculated by summing all of the numbers in a distribution and dividing by the total number of scores.
A. Median
B. Mode
C. Mean
D. Average deviation
8: This measure of central tendency can be considered the least precise:
A. Median
B. Mode
C. Mean
D. Other
9: If a distribution is "significantly distorted" what is this called?
A. Variability
B. Outliers
C. Skew
D. Percentile
10: What is another way of describing "measures of central tendency"?
A. Statistical measure
B. Measure of variability
C. Averages
D. Deviation scores
11: This is calculated by multiplying values by the frequency of their occurrence, adding the total of all the products, and then dividing by the total number of occurrences:
A. Mean
B. Arithmetic mean
C. Mode
D. Weighted mean
12: A number that characterizes the “middleness” of an entire distribution is ______.
A. A measure of central tendency
B. A measure of variability
C. An inferential statistic
D. The standard deviation
13: What is another way of describing "measures of central tendency"?
A. Statistical measure
B. Measure of variability
C. Averages
D. Deviation scores
14: This is calculated by multiplying values by the frequency of their occurrence, adding the total of all the products, and then dividing by the total number of occurrences:
A. Mean
B. Arithmetic mean
C. Mode
D. Weighted mean
15: A number that characterizes the “middleness” of an entire distribution is ______.
A. A measure of central tendency
B. A measure of variability
C. An inferential statistic
D. The standard deviation
16: The most representative score in a set of scores is called
A. Average
B. Accuracy
C. Mode
D. All of these
17: The mean, the median, and the mode is included in measure of central tendency
A. True
B. False
18: A type of average calculated by summing values and dividing that sum by the number of values is known as
A. Mean
B. Median
C. Mode
D. All of these
19: A measure of central tendency calculated by summing all the scores and ____ by the number of scores.
A. Adding
B. Dividing
C. Subtracting
D. Multiplying
20: The percentage of cases equal to and below a particular score in a distribution or set of scores is called percentile ranks.
A. True
B. False
21: The quality of a distribution that defines the disproportionate frequency of certain scores is called
A. Mean
B. Skew
C. Median
D. Mode
22: Whether a score is an outlier or not is usually an arbitrary decision made by the researcher.
A. True
B. False
23: ____ is most frequently occurring score in a distribution
A. Median
B. Mean
C. Mode
D. All of these
24: Data point is an ____
A. Experiment
B. Observation
C. Theory
D. Law
25: Different ways of categorizing measurement outcomes: nominal, ordinal, interval, and ratio is called scale of measurements.
A. True
B. False
26: ____ is the gross level of measurement by which a variable’s value can be placed in one and only one category.
A. Nominal level of measurement
B. Ordinal level of measurement
C. Interval level of measurement
D. Ratio level of measurement
27: A ordinal level of measurement that places a variable’s value into a category and assigns that category an order with respect to other categories.
A. True
B. False
28: An interval level of measurement that places a variable’s values into categories that are equidistant from each other, as when points are evenly spaced along a scale.
A. True
B. False
29: A level of measurement defined as having an ____ zero.
A. Full
B. Absolute
C. Percent
D. None of these
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Computing and Understanding Averages in Statistics MCQs
