4 The Boston Marathon Is The Oldest And Best Known U S Marathon It Covers A Route From Hopkinton Massachusetts To D 1 (48.43 KiB) Viewed 83 times
4 The Boston Marathon Is The Oldest And Best Known U S Marathon It Covers A Route From Hopkinton Massachusetts To D 2 (48.43 KiB) Viewed 83 times
4 The Boston Marathon Is The Oldest And Best Known U S Marathon It Covers A Route From Hopkinton Massachusetts To D 3 (41.35 KiB) Viewed 83 times
4. The Boston Marathon is the oldest and best known U.S. marathon. It covers a route from Hopkinton, Massachusetts, to downtown Boston. The following data are the minutes over 2 hours for the winning male runner from 1981 to 2000. Make a dotplot of the data and describe. 9 8 10 14 7 11 8 9 8 118 97 9 9 9 10 7 9 9 5. Draw a hypothetical back-to-back stemplot of test scores with the following requirements: a) the left side will be "3" Period" and the right side will be "5" period" b) the left side will have 22 students with a range of 40 points and will be skewed left c) the right side will have 25 students with a range of 35 points and will be skewed right 6. A large regional real estate company keeps records of home sales for each of its sales agents. Each month, the company publishes the sales volume for each agent. Monthly sales volume is defined as the total sales price of all homes sold by the agent during a month. The figure below displays the cumulative relative frequency plot of the most recent monthly sales volume (in hundreds of thousands of dollars) for these agents. 1.0 0.8 0.6 0.4 0.2 oli 2 3 4 5 6 7 8 9 10 11 12 Monthly Sales Volume (in hundreds of thousands of dollars) (a) In the context of this question, explain what information is conveyed by the circled point.
(b) What proportion of sales agents achieved monthly sales volumes between $700,000 and $800,000? (c) For values between 10 and 11 on the horizontal axis, the cumulative relative frequency plot is flat. In context of this question, explain what this means. (d) A bonus is to be given to 20 percent of the sales agents. Those who achieved the highest monthly sales volume during the preceding month will receive a bonus. What is the minimum monthly sales volume an agent must have achieved to qualify for the bonus? 7. A back-to-back stem plot showing the average annual salaries (in thousands of dollars) of full professors in California universities compared to salaries of full professors in New York universities is shown below. Compare the distributions. Salaries for Full Professors California New York 94 568 96305 01156 930006 011 3 4 5 6 9 9 9 9 7 7 7 6 6 5 5 5 5 0 7 2 2 4 5 5 6 9 75538 256 54439 357 42 10 03 3 2 11 6 2 12 00 945 represents $49, 00 for California and $45,000 for New York
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