What is the lower class limit for the interval 76-80? Ara's grade is the 80th percentile, in which class interval she belongs?
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What is the lower class limit for the interval 76-80?
Ara's grade is the 80th percentile, in which class interval she belongs?
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- Discrete Mathemeaticssix hundred adult americans were asked by telephone poll, "what do you think constitutes a middle-class income?" Include left endpoint, but not right endpoint. salary: R. Freq. < 20000 0.02 20000-25000 0.09 25000-30000 0.19 30000-40000 0.26 40000-50000 0.18 50000-75000 0.17 75000-99999 0.02 100000+ 0.01 A. what percentage if the survey answered not sure B. What percentage think that middle-class is from $25,000 to…index number (0,2,8)