3.3

Chapter 3 3.3 Measures of Variation

3.3 Measures of Variation ,[object Object],[object Object],Bank 1: Variable waiting times 6 6 6 Bank 2: Single Waiting line 4 7 7 Bank 3: Multiple Waiting Lines 1 3 14

Bank Waiting Times Observe the Variation from the mean Bank 1: NO variation from the mean Bank 2: Small variation from the mean Bank 3: Large variation from the mean

3.3 Measures of Variation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

3.3 Calculating Standard Deviation in TI 30XII calculator ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

3.3 Standard deviation of a population ,[object Object],[object Object],[object Object],[object Object],The mean of the population The number of the total population

Find the standard deviation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

3.3 Variance Example ,[object Object],[object Object],[object Object],[object Object]

3.3 Range Rule of Thumb ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

3.3 Example select the link to watch a helpful demonstration! http://www.screencast.com/users/mwittmer/folders/Jing/media/a260900f-cfab-4c78-a091-37bd70129268 ,[object Object],[object Object],[object Object],[object Object]

3.3 Interpreting and Understanding Standard Deviation ,[object Object],[object Object],[object Object],[object Object],[object Object],2.4% 2.4%

3.3 Empirical Rule Example click on the link: http://www.screencast.com/users/mwittmer/folders/Jing/media/d59f7fd1-3381-4fff-923c-6da5ac2e4082 ,[object Object],[object Object],[object Object],[object Object],[object Object],100 115 130 145 85 70 35 2.4% 2.4%

3.3 Example ,[object Object],[object Object],[object Object],[object Object],[object Object]

3.3

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