The mean of 10 observations is\[5.5\]. When one new observation is included in the data set, the mean of the observations becomes\[6.0\]. What is the value of new observation that was added to the data set?

The mean of 10 observations is\[5.5\]. When one new observation is inc

1.	The mean of 10 observations is\[5.5\]. When one new observation is included in the data set, the mean of the observations becomes\[6.0\]. What is the value of new observation that was added to the data set?
A.	11
B.	10
C.	12
D.	13
Answer» B. 10

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The mean of 10 observations is\[5.5\]. When one new observation is included in the data set, the mean of the observations becomes\[6.0\]. What is the value of new observation that was added to the data set?

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