A researcher surveyed 10 undergraduate psychology majors about their study behaviors. The following is a list of the number of hours they spent studying on the weekend: 6 5 3 4 9 7 3 7 8 3 1. Calculate the mean. 2. Calculate the median. 3. Calculate the mode.
A researcher surveyed 10 undergraduate psychology majors about their study behaviors. The
following is a list of the number of hours they spent studying on the weekend:
6 5 3 4 9
7 3 7 8 3
1. Calculate the
2. Calculate the
3. Calculate the
4. Calculate the
5. Calculate the variance.
6. Calculate the standard deviation.
7. The value of one score in a dataset is changed from 20 to 30. Which measure(s) of
tendency
8. A survey asks whether people think a politician is innocent or guilty of embezzlement. Which
would be the best measure of central tendency to describe this dataset?
9. The value of one score in a dataset is changed from 20 to 30. Which measure(s) of variability
is(are) certain to be changed?
10. Which measure of variability would be more affected by an outlier: the range or the standard
deviation?
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