The table below shows the number of entering freshmen at James Seal University who graduated at the top of their high school class for the years 2008 to 2013:

a. Chebyshev’s Rule would predict that at least _____% of the values in this data set will fall within plus or minus two standard deviations of the mean.

b. For the data here, what % of the values actually fall within this plus or minus two standard deviation interval? 

c. Chebyshev’s Rule would predict that at least _____% of the values in this data set will fall within plus or minus four standard deviations of the mean.

d. For the data here, what % of the values actually falls within this plus or minus four standard deviation interval?

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2008 2009 2010 2011 2012 2013 27 31 29 26 35