1. (Be prepared to make other kinds of charts too.)
• Make a double stem and leaf plot using the two data sets given in Problem 4 on page 512.
• Make a single comparison histogram using the two data sets given in Problem 4 on page 512. Choose an appropriate bin length; justify the length you use.
2. (Be prepared to discuss the advantages of other kinds of charts.) A survey of college students found that 67% have an after school job, 45% live off campus, 43% ride a bicycle to class, and 25% have not declared a major. Which would be the best choice to display this data: a bar chart, a line graph, a pie chart or a histogram? Justify your answer as to which is best (and why each of the others are not).
3. Do Problem 4 on page 545.
4. Explain how to select a simple random sample of 7 elements from the whole numbers running from 1 to 100, using the table on page 570. What sample do you get? Explain in enough detail that I can verify that your sample is the one you should have gotten.
5. Explain how to select a 40% independent sample from the whole numbers running from 1 to 10, using the table on page 570. What sample do you get? Explain in enough detail that I can verify that your sample is the one you should have gotten.
6. Do Problem 37 on page 592.
7. Consider the data 1, 5, 6, 6, 7, 8, 8, 9, 11, 20.
• Find the mean of this data.
• Find the median of this data.
• Find the mode(s) of this data.
• Is the data skewed left or right?
• Find the range of this data.
• Create and label a box and whisker plot of this data.
• Find the sample standard deviation of this data.