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Mrs. Hall records the heights of 50 students in a spreadsheet. The mean height is 68 inches. After looking at the data again, she realized that two of the 50 observations were outliers that must have been typos, 82 and 86 inches. She deleted these two observations. What is the new mean, rounded to the nearest hundredth? show work

 Jan 18, 2017
 #1
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Mrs. Hall records the heights of 50 students in a spreadsheet. The mean height is 68 inches. After looking at the data again, she realized that two of the 50 observations were outliers that must have been typos, 82 and 86 inches. She deleted these two observations. What is the new mean, rounded to the nearest hundredth? show work

 

To get the new mean, we have :

 

 [ 50(68) - 82 - 86] / 48 =  67.33

 

 

 

cool cool cool

 Jan 18, 2017
 #2
avatar+128680 
0

Sorry.....67.33  inches

 

 

 

cool cool cool

 Jan 18, 2017

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