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Unformatted text preview: -30 900 55 75 85 120 Explain variance and standard deviation in practical terms for some partical credit. hint: find the mean first, which will be used for the deviation Variance equals: Sum of Square Dev divided by (n-1) equals ___ Standard Dev equals _______ Explain your findings. Example, there are only 8 data points between 35.5 and 94.5 or only 50 35 55 35 55 3rd month ???? . # Occurrences Total 6 5400 Sum of Square Dev = ____ 0% within one standard deviation. This would suggest that this is not a normal distribution of sales s...
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This note was uploaded on 05/16/2011 for the course BUS 250 taught by Professor Barrie during the Spring '10 term at Kaplan University.
- Spring '10