Mathematics, 07.04.2020 17:02, cascyrio2002

A spelling quiz by 20 boys. The mean score for the girls is 8.25 and the mean score for the ken 12 girls and score for all of boys the following, which is closest to the mean is 7.3. Of the students?

(A) 7.66
(B) 7.71
(C) 7.76
(D) 7.78
(E) 7.89

Answers: 2

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A spelling quiz by 20 boys. The mean score for the girls is 8.25 and the mean score for the ken 12 g...