A situation in which conclusions based upon

10. A situation in which conclusions based upon aggregated crosstablulation are
different from unaggregated crosstabulation is known as
a. wrong crosstabulation
b. Simpson’s rule
c. Simpson’s paradox
d. aggregated crosstabulation
Answer: c
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11. A cumulative relative frequency distribution shows
12. If several frequency distributions are constructed from the same data set, the
distribution with the widest class width will have the
13. The sum of the relative frequencies for all classes will always equal
14. The sum of the percent frequencies for all classes will always equal
a. one
b. the number of classes
c. the number of items in the study
d. 100
Answer: d
15. The most common graphical presentation of quantitative data is a
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be resold, copied, or distributed without the prior consent of the publisher.

4 Chapter Two
16. The total number of data items with a value less than the upper limit for the class is
given by the
17. The relative frequency of a class is computed by