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Chapter 6

Test Yourself

Chapter

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01:28

Questions $13-15$ are base…

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Questions $35-36$ are base…

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Ten salespeople were surve…

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The following table shows …

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Write an expression to sol…

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Use the data in WAGE2 to e…

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For Exercises $3-5,$ use t…

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These data represent the n…

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Sales The graph shows annu…

mhm. Okay, so this one says, What is the average? Which is the arithmetic mean and billions of dollars of the sales of X y Z Corporation for the period 1991 to 1998. So here is a rough graph of the sales for X y Z Corporation. So if we want to find the average, we know that all we have to do to find the average is to add up all the points, not a problem data. Then divide by the number of data points. Okay, So to start, we know that there's 12345678 data points because it's from 1991 to 1988 we know that the average is going to be and by dividing it by eight. So then let's go ahead and see how many billions it is here. So this one is three. This one is six. This one comes to eight. This one comes to seven. This one comes to five. This one's at nine. This one set eat, and this one is at 10. Then we can add all those up three plus six plus eight plus seven plus five plus nine plus eight plus 10. So then, if we do that and then divide by AIDS, you would get seven. So we know that C 7.0 should be the average and billions of dollars of sales of X y Z Corporation for the period 1991 to 1998.

Questions $13-15$ are based on the information in the followinggraphs.

Questions $35-36$ are based on the graphs below.Based on the information…

Ten salespeople were surveyed, and the average number of client contacts per…

The following table shows the hourly wages earnedby the 16 employees of …

Write an expression to solve each problem and evaluate it. See the graph bel…

Use the data in WAGE2 to estimate a simple regression explaining monthly sal…

For Exercises $3-5,$ use the following information. The projected sales of e…

These data represent the net worth (in millions of dollars) of 45 national c…

Sales The graph shows annual sales (in thousands of dollars) of a Nintendo g…