AnaDemetrio AnaDemetrio

06-07-2017
Mathematics

contestada

The mean of nine test scores is 61. If a score of 71 is added to the group of scores, what is the new mean?

A. 62

B.65

C.66

D.68

Respuesta :

ChrisDaBeast ChrisDaBeast

06-07-2017

The answer is.

A.) 62
work:

61 x 9 = 549
549 + 71 = 620
620 / 10 = 62

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