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The mean and standard deviation of six o...

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.

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PSEB-STATISTICS-EXERCISE
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  6. Find the mean deviation about the mean for the data given below:- xi 1...

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  7. Find the mean deviation about the median for the data given below:- xi...

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  8. Find the mean deviation about the median for the data given below:-xi ...

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  9. Find the mean and variance for the following data:- 6, 7, 10, 12, 13, ...

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  10. Find the mean and variance for the following data:- First n natural nu...

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  11. Find the mean and variance for the following data:- First 10 multiples...

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  12. The sum and sum of squares corresponding to length x (in cm) and weigh...

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  13. The mean and variance of eight observations are 9 and 9.25, respective...

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  14. The mean and variance of 7 observations are 8 and 16, respectively. If...

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  15. The mean and standard deviation of six observations are 8 and 4, respe...

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  16. Given that bar x is the mean and sigma^2 is the variance of n observat...

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  17. The mean and standard deviation of 20 observations are found to be 10 ...

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  18. The mean and standard deviation of a group of 100 observations were fo...

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