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Unformatted text preview: The upper limit of the class The lower limit of the class The frequency of the class The cumulative frequency preceding the class The class midpoint 7. The ages of all the patients in the isolation ward of the hospital are 38, 26, 13, 41 and 22. What is the population variance? (Points : 1) 106.8 91.4 240.3 42.4 8. Based on the Empirical Rule, what percent of the observations will lie plus or minus two standard deviations around the mean? (Points : 1) 95% 5% 68% 2.5% 9. A disadvantage of using an arithmetic mean to summarize a set of data is (Points : 1) The arithmetic mean sometimes has two values It can be used for interval and ratio data It is always different from the median It can be biased by one or two extremely small or large values. 10. The lengths of time (in minutes) several underwriters took to review applications for similar insurance coverage are: 50, 230, 52 and 57. What is the median length of time required to review an application? (Points : 1) 54.5 141.0 97.25 109.0...
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This note was uploaded on 08/29/2011 for the course EC 315DLB taught by Professor Randallbarcus during the Fall '10 term at Park.
 Fall '10
 RandallBarcus

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