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a secure https://www.mathx.com/student/Playermest.aspx?testld-152461483&centerwin; yes MATH 1001 Quantitative Reasoning-Section 120 Quiz: Quiz 13: 12.2, 12.3 This Question: 1 pt 6 of 8 (4 complete) v Find a. the mean: b. the deviation from the mean for each data item; anc c. the sum of the deviations in part (b) for the following group of data items. 74, 84, 79, 74, 89 a, The mean is 80 b. Complete the following table by entering the deviations for each data value. c. The sum of the deviations is lal Vi (u) More

Explanation / Answer

a) Mean = 400/5 = 80

b) deviation from each point:

74 : x - mean = 74-80 =-6

84: = 4

79 : = - 1

74 : = -6

89 : = 9

Sum of deviations = -6 + 4 -1 -6 + 9 = 0

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