Describe the difference between bar charts, histograms, Pareto charts, including how they are structured and in what situations are each most effectively used?

Descriptive Statistics

Describe the difference between bar charts, histograms, Pareto charts, including how they are structured and in what situations are each most effectively used?

2. Histogram – 4 Classes

2. Given the following data points, describe the steps to create a histogram with 4 classes.

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3. Histogram – 3 Classes

3. Given the following data points, describe the steps to create a histogram with 3 classes.

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4. Histogram – 5 Classes

4. Given the following data points, describe the steps to create a histogram with 5 classes.

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5. Male and Female Groups

5. Describe the steps and then find x¯ and s of the males and of the females as separate groups.  Compare these values.

                Females:  43  48  54   55  33  48   62   68   54  61

                Males:  62  55  54  59  21  22  50  59  62  38

6. Male and Female Medians

6. Describe the steps and then find x¯ and the median of males and of the females as separate groups.  Compare these values.

                Females:  43  48  54   55  33  48   62   68   54  61

                Males:  62  55  54  59  21  22  50  59  62  38

7. Sample versus Population

7. Describe the steps and then find s and σ with different assumptions regarding the data. Compare and discuss the differences.

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8. Empirical Rule

8. Use the Empirical Rule to find the 68% range and find the percentage of data points in that range.

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9. The 95% Range

9. Use the Empirical Rule to find the 95% range and find the percentage of data points in that range.

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10. Ethics! (Graphs, misleading?)

10. Ethics:  Find a graph or chart in the news and describe the information provided.  Was this graph the best choice for presenting the data?  Why or why not?  How might the graph mislead the reader, if at all?

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