Reviewing for Math 2200 Exam 1

Format

Main topics

• Data
  • 5 W's
  • Quantitative vs categorical
• Displays
  • Categorical data
    • Bar charts + segmented bar charts
    • Pie charts (when displaying parts of a whole)
  • Quantitative data
    • Histograms
    • Stemplots
    • Boxplots
      • Tukey's boxplot heuristics for outliers
  • Displays comparing distributions
    • Categorical vs quantitative: side-by-side boxplots
    • Quantitative vs quantitative: scatterplots
      • Is it straight?
• Distributions of variables
  • Unimodal vs bimodal vs multimodal vs uniform
  • Symmetric vs skew
  • Normal distributions
  • Outliers
  • Reexpressing data -- sometimes it helps to take the log (or sqrt, or ...)
• Statistics summarizing data -- 1 Var Statistics
  • Max and min
  • Median, quartiles, and the IQR
  • Mean, standard deviation
    • z-scores
    • the normal model -- InvNorm and NormalCdf
• Correlations
  • How to calculate correlation coefficient r
  • When to calculate r
  • The meaning of r

Finding practice problems

First: you should do the suggested problems from the schedule! About half of the exam will be taken directly from the suggested problems, so working these is the best thing you can do to study.

Next: you may want to look at the old exams. Do this less because they're such good practice problems, and more to get a sense of what a multiple-choice statistics exam might look like, or at least has looked in the past.

If you still want more, then:
If you're using the book, it has a lot of problems in it that were not assigned, and almost all of them are appropriate and worthwhile to think about.
If you're using MyStatLab, then there is a link at left from the main page: "STUDY PLAN". This will take you to additional practice problems. As usual, MyStatLab will tell you if you've done them correctly.
(Please note that you can also browse the textbook online in MyStatLab by following the "Chapter Contents" link from the main page, and look at the problems in the textbook, etc.)

Getting help