Statistics: Measures of Dispersion Assignment

| August 30, 2017

Question
Statistics: Measures of Dispersion
Directions: ? Show your work and explain your reasoning using complete English sentences.
? You need to put the title above on your paper and put your name on the top right of your page if you do not do the work on this sheet.
1. The price for gas at ten locations is shown below.
$3.95, $3.98, $3.89, $3.86, $3.95, $3.94, $3.89, $4.05, $3.89, $3.82
(5 points each)
a. Calculate the mean
b. Calculate the standard deviation
c. What percentage of data falls within one standard deviation of the mean?
d. What percentage of data falls within two standard deviation of the mean?

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