SOLUTION: Find a. the​ mean; b. the deviation from the mean for each data​ item; and c. the sum of the deviations in part​ (b) for the following group of data items. 55,95,75,55,115

Algebra ->  Probability-and-statistics -> SOLUTION: Find a. the​ mean; b. the deviation from the mean for each data​ item; and c. the sum of the deviations in part​ (b) for the following group of data items. 55,95,75,55,115       Log On


   



Question 1195720: Find a. the​ mean; b. the deviation from the mean for each data​ item; and c. the sum of the deviations in part​ (b) for the following group of data items.
55,95,75,55,115


Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Find
a. the​ mean;
55 + 95 + 75 + 55 + 115 = 395
5 data points
395/5 = 79 is the mean
:
b. the deviation from the mean for each data​ item;
55 - 79 = -24
95 - 79 = +16
75 - 79 = -4
55 - 79 = -24
115 - 79 = 36
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c. the sum: 0 Always!