MATH200 — Practice Quiz: Chapter 2 — 22 min
Work this like a regular quiz, using only your crib sheet. Give yourself a maximum of 22 minutes, then turn to the solutions and see how you did.
Remember, you must show your work for full credit on any problems involving computation.
2(points: 1) Bert asked his fellow students how many books they read for pleasure in a year. He found that most of them read 0, 1, or 2 books, but some read 3 or more and a very few read as many as 10. (He plotted the histogram shown at right.) What is the word or short phrase we learned to describe the shape of this distribution?
83 78 99 60 87 74 64 55 81 81 87 91 69 77 94 65 72
|Test scores, x||Frequencies, f|
4(points: 5) At right is a grouped frequency distribution. Create a frequency histogram. (For a real quiz, you’d use graph paper, but you can freehand this one.)
Solutions to this practice quiz are available at http://www.tc3.edu/instruct/sbrown/stat/