Claudia Arnold College Mathematics MAT-131-OLO1 Test: Quiz 4 This Question: 1 pt

Question

Claudia Arnold College Mathematics MAT-131-OLO1 Test: Quiz 4 This Question: 1 pt Claudia Amold ! 313/1 8 4:55 PM Time Remaining: 00:24:40 Submit Test 70110 (5 complete) This Test: 10 pts possible 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 49, 99, 74, 49, 124 a. The mean is 79 b. Complete the following table by entering the deviations for each data value 49 49 124 C. The sum of the deviations is Enter your answer in each of the answer boxes

Explanation / Answer

Clearly mean = sum/N

Here sum = (49 +99+74+49+124)= 395

Therefore mean is 395/5 = 79

The deviation from mean is | x- mean | i.e. the absolute value of (x - mean)

So, the deviation is as follows:

So the sum of deviations is = 30 +20 + 5 + 20 + 45 = 120

49 99 74 49 124 |49-79| = 30 |99-79|= 20 |74-79|=5 |49-79|=30 |124-79|=45

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