Percentage values- Descriptive Statistics

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Percentage values- Descriptive Statistics Powered By Docstoc
					              Sub: Statistics                                                             Topic: Descriptive Statistics
              Question:

              To find the percentage of the values between two values using Chebyshev's
              theorem and Empirical rule.
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                   a) Use Chebyshev’s theorem to find what percent of the values will fall between 120 and
                      150 for a data set with mean of 135 and standard deviation of 7.5.

                 b) Use the Empirical Rule to find what two values 95% of the data will fall between for a
                    data set with mean 234 and standard deviation of 12.
              Solution:

              The information given in the problem can be represented with the following notations:

              X1 = 120 and X2 = 150

              Mean: µ = 1
				
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Description: Find the percentage of the values between two values
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