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Name _______________________________________ Homework: Review Three Date _____ Class _____ Mr. Lynch Complete each of the following: 1) Which of the following looks closely at problems? a) bar graph b) pareto chart c) time plot d) pie chart 2) Use the following values about test scores to construct a stem-and-leaf plot: 43 59 34 28 32 14 11 29 37 49 49 52 30 49 22 19 48 19 43 57 42 34 37 28 3) What is the formula for class width? 4) Which of the following uses cumulative frequency on one of its axes? a) frequency histo. b) ogive c) time plot d) frequency polygon 5) If the upper class limit if 54 and the lower class limit is 18, what is the class midpoint? (Show the formula!) 6) What are the first 5 digits in column 7, row 18 of your random number table? 7) Use the data set below and circle one outlier: 89 84 80 46 81 89 84 87 83 8) Some distributions have one or more major peaks called _______________. 84 87 82 9) Use the following data values to complete the table below. Use 5 classes: 43 28 79 01 47 32 98 40 69 31 47 82 42 39 87 49 83 27 Class Class Boundaries Tally Σ= Frequency Σ= 10) What is the formula for weighted average? Class Midpoint 23 46 Relative Frequency Σ= 84 78 82 68 Cumulative Frequency