Statistics (Entrance Exam)

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The mean of 25 numbers is 14. If 3 is added to every number, what will be the new mean?

What is the media:n of the distribution: 34, 22, 13, 11 , 27, 19, 25, 16?

If the difference of the mode and median of a data is 38, then the difference of the median and mean is:

Calculate the standard deviation for the following data.

3, 4, 5, 6, 7

The following table gives a frequency distribution whose arithmetic mean is 33. Find the product of the possible values of k from the distribution.