# Project #5699 - Statistics

Question #1

Sixteen prisoners completed a questionnaire that measured their attitudes towards interpersonal violence. Respondents who scored high believed that in many situations, a person could legitimately use physical force against another person. Respondents who scored low believed that in no situation could the use of violence be justified.

 52 47 53 23 17 63 19 66 20 66 10 82 8 91 75 32

1.       Calculate the following statistics for this sample of prisoners:

i.            Mean

ii.            Median

iii.            Mode

iv.            Range

v.            Average Deviation

vi.            Variance

vii.            Standard deviation

Question #2

The following table describes incarceration rates of the United States’ population for a selected number of years:

 Year Rates of Incarceration 1972 1975 1978 1981 1984 1987 1990 1993 1996 75.6 91.5 113.4 132.5 163.8 195.7 98.93 117.39 136.08

i.      What is the mean and standard deviation of incarceration rates over this time period?

ii.      What happens to the mean of incarceration rates when we add the years 1999 (rate = 378.6) and 2002 (rate = 390.5)? Which measure of central tendency would you use to describe the 1972–2002 distribution and why? What will be the value (i.e. number) of that measure of central tendency

 Subject Mathematics Due By (Pacific Time) 05/07/2013 02:00 pm
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