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Q38 Answer the following questions about variability of data sets: [4 Marks] (a) What is the...

Q38 Answer the following questions about variability of data sets: [4 Marks]

(a) What is the primary disadvantage of using the range to compare the variability of data sets?

(b) Describe the sample variance using words rather than a formula. Do the same with the population variance.

(c) Can the variance of a data set ever be negative? Explain.

(d) Can the variance ever be smaller than the standard deviation? Explain.

DO NOT WRITE THE ANSWERS - USE WORD FORMAT.

NO PLAGIARISM IN THE ANSWERS PLEASE - WILL SEND BACK QUESTION IF THERE IS.

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