English, asked by akjbwrseema, 7 months ago

of all 15 observations.
5. The mean of 13 observations is 15. If the mean of the first 7 observations is 13 and that of
the last 7 observations is 17, find the 7th observation.​

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Answered by Anonymous
15

Answer:

2 minutes ago ... is 15. If the mean of the first 7 observations is 13 and that of the last 7 observations is 17, find the 7th observation.​ ... Add your answer and earn points.

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