M119L06-page1

M119L06-page1 - 1) Range Range = Max − Min = highest...

This preview shows page 1. Sign up to view the full content.

(Lesson 6: Measures of Spread or Variation; 3-3) 3.15 LESSON 6: MEASURES OF SPREAD OR VARIATION (SECTION 3-3) PART A: THREE MEASURES Example 1 (same as in Lesson 5 ) The five students in a class take a test. Their scores in points are as follows: 80 76 100 83 100 Let’s look at three possibilities for measuring the spread or variation of a data set. Note: All three of these measures are nonnegative in value.
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1) Range Range = Max − Min = highest value − lowest value in the data set ( ) In Example 1 Range = Max − Min = 100 − 76 = 24 points Pros: The range is quick and easy to find, and it seems like a natural measure of spread. Cons: The range uses only two of the data values (excluding ties), and it is extremely sensitive to outliers....
View Full Document

This note was uploaded on 12/29/2011 for the course MATH 119 taught by Professor Kim during the Fall '09 term at SUNY Stony Brook.

Ask a homework question - tutors are online