opiaana10 opiaana10

27-04-2018
Mathematics

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John got the follow scores on his tests what is the interquartile range of his scores 78,57,90,60,89,69,95

A. 18
B. 20
C. 30
D. 38

Respuesta :

27-04-2018

57, 60, 69, 78, 89, 90, 95 (90-60=30) Answer= C. 30

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