31. City A (population = 1567 people) had 34 auto thefts last year.City B (population = 34,567) had 40 auto thefts in the same time period and City C (population = 156,980) had 70 auto thefts.Which city had the highest RATE of auto theft?

A.City A

B.City B

C.City C

D.More information is needed to answer this question.

32. For a single variable at the interval-ratio level, an appropriate graph would be

A.a pie chart.

B.a histogram.

C.a bivariate table.

D.none of the above. Graphs are never used for interval-ratio level variables.

33. For a single variable measured at the nominal level, an appropriate graph would be a

A.pie chart.

B.histogram.

C.frequency polygon.

D.bivariate table

34. For ordinal level variables, the most appropriate measure of central tendency is generally

A.the mode.

B.the median.

C.the mean.

D.None of the above

35. If you subtracted the mean from each score in a distribution and added the results, the sum would be

A.zero.

B.less than zero.

C.a minimum.

D.the mode.