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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