What are the range and standard deviation

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Question: A sample of 25 undergraduates reported the following dollar amounts of entertainment expenses last year:

690     686     714     738     682     751     724     713     763     703     703     711     771
719     691     715     752     717     750     703     720     772     743     739     744

a. Find the mean, median and mode of this information. (Round your answers to 2 decimal places.)

Mean
Median
Mode

b. What are the range and standard deviation? (Round your answers to 2 decimal places.)

Range
Standard deviation

c. Use the Empirical Rule to establish an interval which includes about 95 percent of the observations. (Round your answers to 2 decimal places.)

The interval is from $ up to $.

Reference no: EM13955896

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