10 is the mean of a set of 7 observations and 5 is the mean of a set of 3 observations. The mean of the combined set is
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Q 3042845733.
10 is the mean of a set of 7 observations and 5 is the mean of a set of 3 observations. The mean of the combined set is given by
A
`15`
B
`10`
C
`8.5`
D
`7.5`
HINT
Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)
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