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Find the Mean, Median and Mode of the Data

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The number of homicides in Vermont from 1992 through 2001 is given in the following table.

Year Homicide Victims
1992 21
1993 15
1994 5
1995 13
1996 11
1997 9
1998 12
1999 17
2000 12
2001 11

a. Find the mean, median and mode of the data.
b. Find the standard deviation of the data.
c. What percent of the data is within 1 standard deviation of the mean.

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