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briannabo08
09.07.2019 •
Mathematics
Martin earned the following scores on his last five tests. 98, 78, 84, 75, 91 what is the mean absolute deviation of his scores? 37.2 0 6.2 7.44 ? ?
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Ответ:
in this exercise we have to calculate the averages of the scores so we have to:
A)85.2
B)7.44
First, let's calculate the average score as:
Find the difference between the average and each test score, after that we will calculate the total average of all grades then:
See more about averages at link
Ответ:
find the average of his scores:
98 +78+84 +75 +91 = 426/5 = 85.2
now find the difference between the average and each test score:
98 - 85.2 = 12.8
85.2 -78 = 7.2
85.2 - 84 = 1.2
85.2 -75 = 10.2
91-85.2 = 5.8
total those and divide by the number of tests
12.8 + 7.2 + 1.2 +10.2 +5.8 =37.2/5 = 7.44
Ответ:
none. there is no intercept please tell me if im wrong