What is the mean absolute deviation for the data? 30, 35, 35, 40, 55 A. 5 B. 6.4 C. 6.8 D. 25

Mean= (30+35+35+40+55)/5= 195/5= 39

Mean Absolute Deviation (MAD)
30-39= |-9|= 9
35-39= |-4|= 4
35-39= |-4|= 4
40-39= | 1 |= 1
45-39= | 6|= 6

(9+4+4+1+6)/5= 24/5= 4,8

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