statchap2

# statchap2 - The following data is a random sample of 20...

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1 59 70 55 55 58 40 62 55 70 114 109 76 50 69 59 46 52 65 60 92 The following data is a random sample of 20 prices of running shoes Use 6 classes 1. Class Width Calculate # Then increase to next whole number. high low of classes - 114 40 74 12.3 6 6 increased to the next whole number 13 - = = 2. Create Classes Start with the low and add the class width to get the lower class limit for the second class. Repeat until you have all classes Upper class limits are one less than the lower class limit of the next class Section 2.1 Classes 40 53 66 79 92 105 52 - 65 - 78 - 91 - 104 - 117 - 3. Find Class Boundaries The class boundaries are the halfway points between the upper class limit of one class and the lower class limit of the next class. The lower class boundary of the first class is the lower class limit minus one half unit 4. Find Each Class Midpoint The class midpoint is the center of the class. It is found by :

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## This note was uploaded on 04/20/2008 for the course MAT 121 taught by Professor Rimmer during the Fall '07 term at West Chester.

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statchap2 - The following data is a random sample of 20...

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