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CStatistics and Probability ques x Connedt Connect C Secure https://newconnect.m

ID: 2923214 • Letter: C

Question

CStatistics and Probability ques x Connedt Connect C Secure https://newconnect.mheducatio Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. Return to question 5 A sample of 25 undergraduates reported the following dollar amounts of entertainment expenses last year: 698 745 752 773710 720 719 705 754 719 702 711 705 742 738 685 709 713 743 696 774 740 762 758 729 points Round your answers to 2 decimal places.) a. Find the mean, median, and mode of this information. Answer is complete and correct. 728.08 Mean Median Mode s 720.00 $705 and 719 b. What are the range and standard deviation? Mc Graw Hill

Explanation / Answer

As per empirical rule, 95% of the observations lies between 2 standard deviations from the mean. Hence,

The interval is from (728.08 - 2*25.27) to (728.08 + 2*25.27) i.e. 677.54 to 778.62