fabduraimova2388 fabduraimova2388

19-05-2022
Mathematics

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The mean of this data set is 9. What number is missing?

11,20,_,3,1

Respuesta :

godlike74 godlike74

19-05-2022

Let the missing number be x

Mean is the total sum of data over the number of data therefore,

(11+20+x+3+1) / 5 = 9
Then simplify
(35 + x) / 5 = 9
Then multiply 5 to both sides
35 + x = 45
Then subtract 35 to both sides to find x
X= 10

Hope this helps!

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