Practice Exercise: Measures of Dispersion
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Question 1 of 10
Measures of dispersion are...
Values that represent the spread of a distribution
Values that tend to represent the center of a distribution
Values that represent the range of a distribution
Values that represent the accuracy of a distribution
Question 2 of 10
Which of the following represents the average distance of each score from the mean?
mean
mode
standard deviation
median
Question 3 of 10
The larger the standard deviation, relative to the mean...
the closer the distribution values are to the mean
the more likely the mean, media, and mode are equal
the more likely the mean is a good proxy of the population mean
the more dispersed the distribution values are from the mean
Question 4 of 10
The smaller the standard deviation, relative to the mean...
the more likely the mean is a bad proxy of the population mean
Question 5 of 10
To calculate the standard deviation you use...
the median, the number of values, and all the distribution values
the mode, the number of values, and all the distribution values
the mean, the number of values, and all the distribution values
all of the distribution values, and the number of values only
Question 6 of 10
If you have a mean of 100 and a standard deviation of 80,
the distribution values are relatively close to the mean
the distribution values are neither close nor far from the mean
the distribution values are relatively far from the mean
I don't have enough information to answer this question
Question 7 of 10
If you have a mean of 100 and a standard deviation of 10,
Question 8 of 10
If you have a mean of 100 and a standard deviation of 30,
Question 9 of 10
If you have a mean of 50 and a standard deviation of 40,
Question 10 of 10
If you have a mean of 500 and a standard deviation of 80,