Complete the following:
Q1: Consider the data 8, 6, 7, 7, 9, 4, 8. What is the variance?
Q2: Given the following sentences in years for vehicular manslaughter group of 27:
Sentences f
10 1
9 0
8 4
7 8
6 1
5 3
4 3
3 3
2 2
1 2
What is the mean score?
Q3: Consider the data 8, 6, 7, 7, 9, 4, 8. What is the standard deviation?
Q4: The scores on a crime seriousness scale were obtained for 46 adults. For the following simple frequency distribution, calculate the mean, the median, and the mode.
Score f
10 3
9 4
8 5
7 6
6 7
5 5
4 5
3 4
2 3
1 4
N=46
Q5: In a study of college binge drinking in the 1990s, Henry Wechsler examined racial differences in the percentage of binge drinkers. The following table summarizes his results (Sourcebook 2000):
Race Percent Binge Drinkers in 1999
White 49.2
Black 15.5
Asian/Pacific Islander 23.1
Other 39.6
Q6: What is the measure of central tendency most appropriate for these data? Why?
Q7: What does this measure of central tendency tell you about the most typical binge drinker?