Mathematics, 16.07.2019 21:30 jillian0013

Aset of n = 15 scores has a mean of 8. another set of n = 5 scores has a mean of 4. if these two scores are combined, what is the mean of the total group?

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Aset of n = 15 scores has a mean of 8. another set of n = 5 scores has a mean of 4. if these two sco...