For the data set of student marks from Ms. Nice’s class and Mr. Mean’s class (first discussed in the Develop Your Skills 2.2, Exercise 10), create appropriate graphs for comparison. Comment on the differences and similarities you see in the two data sets.
Answer to relevant QuestionsA survey of pedestrian traffic is conducted over 45 days for two areas where a manager is thinking of opening a new location. Create appropriate frequency distributions and histograms for these data sets, and comment on ...Recall the drugstore survey mentioned at the beginning of the chapter. Sort the data on incomes into two groups, male and female customers. Use appropriate graphs to compare the incomes, and comment. Pam Liddell collects data on the ages of a random sample of the people attending a local fall fair. The data are shown below in Exhibit 2.85. Use a stem-and-leaf display to organize the data. Describe the shape of the ...Calculate an appropriate measure of variability for the incomes of customers in the survey of drugstore customers. Two of the data sets depicted in Exhibit 3.43 below have an r-value of 0.73, and one has an r-value of – 0.90. Indicate which r-value belongs to each graph. How can the r-values be the same for the two graphs you have ...
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