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Which measure of dispersion disregards the algebraic signs (plus and minus) of each difference between
X and the mean?
Select one:
a. Standard deviation
...
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Which measure of dispersion disregards the algebraic signs (plus and minus) of each difference between
X and the mean?
Select one:
a. Standard deviation
b. Mean deviation
c. Arithmetic mean
d. Variance
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The correct answer is: Mean deviation
Question 2
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0 qaid=21034839&q 0
3
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For a symmetrical distribution, the variance is equal to the standard deviation.
Select one:
True
False
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The correct answer is 'False'.
Question 3
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0 qaid=21034845&q 0
3
0 qaid=21034846&q 0
3
According to the Empirical Rule, 75% percent of the observations lie within plus and minus 2.00 average
mean deviations.
Select one:
True
False
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The correct answer is 'False'.
Question 4
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What level of measurement is the price of an admission ticket to a movie theater?
Select one:
a. Nominalq
b. Ordinal
0 qaid=21034827&q 0
3
c. Interval
d. Ratio
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The correct answer is: Ratio
Question 5
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