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OpenStudy (anonymous):
SAT Scores Group 1 1520 1630 1480 1580 1400 1300 1700 1610 1580 1520 SAT Scores Group 2 1510 1480 2100 1800 1300 1250 1400 1430 1390 1520 SAT Scores Group 3 1620 1700 1520 1510 1530 1430 2000 1800 1410 1390 SAT Scores Group 4 1480 1570 1400 1800 1930 2150 1340 1580 1530 1610 The SAT scores for 4 groups of 10 students are shown. Which group has the smallest mean absolute deviation? A) Group 1 B) Group 2 C) Group 3 D) Group 4
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OpenStudy (anonymous):
Just enter the scores into your calculator: MAD = 1/ (n-1) Σ ( x - mean)
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