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
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
----------------
c. the sum: 0 Always!