1. A frequency distribution of the number of defendants sentenced to death in each of the 30
states during the year 2009 would be depicted best in the form of a
a. histogram
b. bar graph
c. frequency polygon
d. pie chart
2. The direction of skewness is determined by the relative position of the
a. peak of distribution.
b. midpoint of the distribution.
c. tail of the distribution.
d. class intervals of the distribution.
3. To show trends in birth rate from 1980 to the present, by year, a researcher would probably use a
a. pie chart
b. bar graph
c. line chart
d. frequency polygon