Suppose that mean and standard deviation...

Suppose that mean and standard deviation of 6 observations are 8 and 4 respectively . Let each observation be multiplied by 3. Find the new mean of the resulting observations

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Suppose that mean and standard deviation of 6 observations are 8 and 4 respectively . Let each observation be multiplied by 3 Find the standard deviation of the resulting observations.

(b)The mean and standard deviation of 6 observations are 8 and 4 respectively.If each observation is multiplied by 3,find the new mean and new standard deviation of the resulting observations.

The mean and standard deviation of six observations are 8 and 4, respectively. If each observation is multiplied by 3, find the new mean and new standard deviation of the resulting observations.

The variance of 20 observations is '5 .' If each observation is multiplied by 2, find the new variance of the resulting observations.

The mean and variance of 7 observations are 8 and 16 respectively. If five of the observations are '2,4,10,12,14'. Find the remaining two observations:

The mean and variance of 7 observations are 8 and 16 respectively . If five of the observations are 2,4,10,12,14 find the remaining two observations.

A student obtained the mean and standard deviation of 100 observations as 40 and 5.1 respectively . It was later found that one observation was wrongly copied as 50, the correct figure being 40. Find the correct mean and S.D.

Find the mean and standard deviation using short-cut method

The mean and standard deviation of 100 observations were calculated as 40 and '5.1', respectively by a student who took by mistake 50 instead of 40 for one observation. What are the correct mean and standard deviation?

A N EXCEL PUBLICATION-STATISTICS-QUESTION BANK

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