5.Which of the following statements about the mean is not always correct? A The sum of the deviations from the mean is zero. B Half of the observations are on either side of the mean. C. The mean is a measure of the central location. D. The value of the mean times the number of observations equals the sum of all observations.

MATLAB: An Introduction with Applications
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5.Which of the following statements about the mean is not always correct?
A The sum of the deviations from the mean is zero.
B Half of the observations are on either side of the mean.
C. The mean is a measure of the central location.
D. The value of the mean times the number of observations equals the sum of all observations.
6. The smaller the spread of scores around the mean:
a.
the smaller the variance of the data set.
b. the smaller the standard deviation of the data set.
с.
the smaller the coefficient of variation of the data set.
d. All of these choices are true
Transcribed Image Text:5.Which of the following statements about the mean is not always correct? A The sum of the deviations from the mean is zero. B Half of the observations are on either side of the mean. C. The mean is a measure of the central location. D. The value of the mean times the number of observations equals the sum of all observations. 6. The smaller the spread of scores around the mean: a. the smaller the variance of the data set. b. the smaller the standard deviation of the data set. с. the smaller the coefficient of variation of the data set. d. All of these choices are true
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