5 8 9 4 6 Find the standard deviation of the data set above. Now create another

Question

5 8 9 4 6

Find the standard deviation of the data set above. Now create another data set by adding 3 to each data value in the set above and find the standard deviation again. How does the standard deviation for the new data set compare with the one given above?

a) The standard deviation for the new set is 3 more than the standard deviation for the first set.

b) The standard deviation for the new set is 1/3 the standard deviation for the first set.

c) They are the same

d) The standard deviation for the new set is 3 times the standard deviation for the first set.

a) The standard deviation for the new set is 3 more than the standard deviation for the first set.

b) The standard deviation for the new set is 1/3 the standard deviation for the first set.

c) They are the same

d) The standard deviation for the new set is 3 times the standard deviation for the first set.

Explanation / Answer

A) and C) are not at all correct.

d) can also not happen when 3 is added to the set

correct option is B

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