# The SAT scores for a group of 10 students are shown. What is the mean absolute deviation of the group? A. 45B. 88C. 880D. 1532

Question

Answer:

first we have to find the mean (average) of these numbers(1520 + 1630 + 1480 + 1580 + 1400 + 1300 + 1700 + 1610 + 1580 + 1520) / 10 = 15320 / 10 = 1532

now we find the absolute value of the difference between each data value and the mean.

|1520 - 1532| = 12

| 1630 - 1532| = 98

|1480 - 1532| = 52

|1580 - 1532| = 48

|1400 - 1532| = 132

|1300 - 1532| = 232

|1700 - 1532| = 168

|1610 - 1532| = 78

|1580 - 1532| = 48

|1520 - 1532| = 12

now, we find the mean (average) of these numbers....and that is ur MAD

(12 + 98 + 52 + 48 + 132 + 232 + 168 + 78 + 48 + 12) / 10 = 880/10 =

88 <== ur mean absolute deviation

solved

general
10 months ago
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