# Exam 1 Study Guide: Chapters 1-6

1. Identify the context of the data. Context involves the who, what, where, when, why, and how. For each variable (what), tell whether the variable is categorical or quantitative and give the units for all quantitative variables. Look at problems 2.2-21. Two parts.
2. Categorical data. Be able to read a frequency table and answer questions based on it. Be able to construct a pie chart or bar chart by hand. Look at problems 3.5-13
3. Contingency table. Be able to find percents, marginal distributions, conditional distributions. Look at problems 3.14-31.
4. Given a description of a situation, tell whether you would expect the distribution to be uniform, unimodal, or bimodal. Tell if you expect it to be symmetric or skewed. Look at problems 4.3-4.
5. Given a small set of data values, find the mean, median, mode, variance, and standard deviation. Look at problems 5.3-10
6. Given a set of summary statistics, construct a box plot. Write a sentence or two describing the distribution of the data. Look at problems 5.23-26, 32
7. Read and interpret an ogive. Look at problems 5.29-30
8. Draw and label a figure that illustrates the Normal model and the 68-95-99.7 rule. Label the axis with the appropriate values based on the mean and standard deviation for the model. Answer questions about what percent of the values lie in certain regions based on the 68-95-99.7 rule. Find two standardized scores based on the mean and standard deviation of the distribution. Look at problems 6.11-12.
9. A standard normal model is given. Find the amount of the area in each region. Draw a figure and shade the region. You will need Table Z for this problem. Five parts. Look at problems 6.19-20.
10. Find the missing parameter from the Normal model. Look at problems 6.23-24.

## Notes

• Most of the problems are directly from the textbook or very similar to problems from the textbook.
• You will need Table Z in appendix E for this test. This will probably be provided for you, but you should bring your book just in case you need to use it.. You do not get to use the rest of the text.
• You will need a scientific calculator.
• You will not need Minitab or Active Stats. Your computer screens should be off during the exam.

## Points per problem

 # Pts 1 2 3 4 5 6 7 8 9 10 Total 10 8 10 8 10 10 9 14 15 6 100