2-4 example1

# 2-4 example1 - Student Grady Silnonton Course Math119...

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Unformatted text preview: Student: Grady Silnonton Course: Math119: Elementary Statistics - Spring 2.010 - CRN: 49239 Instructor: Shawn Parvini - 16 weeks Date: 2/18/10 Book: Triola: Elementary Statistics, 11e Time: 11:08 ANI The data represents the actual high temperature for 14 consecutivedays. 60 60 65 80 65 75 Construct a dotplot of the actual high temperatures. What does the dotplot suggest about the 75 70 75 distribution of the high temperatures? 70 65 80 55 85 A dotplot consists of a graph in which each data value is plotted as a point (or dot) along a scale of values. Dots representing equal values are stacked. First create a frequency distribution with a class width of 5 and the class midpoints starting at 55. The frequency for each class midpoint is listed below. 55 60 65 70 75 80 85 l 2 3 2 3 2 1 To create the dotplot, list the categories horizontally and place the appropriate number of dots above each of the values. The number of dots corresponds to the _ _ frequency for each value. I 1' I: 1" 1' 1" I: 1' I What does the dotplot suggest about the distribution of the high temperatures? The range of temperatures tells us that the actual high temperatures range from 55 degrees to 85 degrees with a fairly uniform distribution of temperatures. 50 50 70 BO 90 Page 1 ...
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