MTH 120 - Finding the Mean, Median, & Mode 2

MTH 120 - Finding the Mean, Median, & Mode 2 - To...

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Raw Data N Salary 1 $25,000 2 $25,000 3 $25,000 4 $25,000 To answer the questions, we should first convert the frequency table into a table of raw data. 5 $28,000 6 $28,000 7 $28,000 8 $30,000 9 $30,000 10 $45,000
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Raw Data N Salary 1 $25,000 2 $25,000 3 $25,000 4 $25,000 Mean To find the mean, first add all of the salaries, then divide the sum of the salaries by the total number of salaries. The sum of the salaries = $289,000 5 $28,000 6 $28,000 7 $28,000 8 $30,000 9 $30,000 10 $45,000 $289,000 / 10 = $28,900 Mean = $28,900
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N Salary 1 $25,000 2 $25,000 3 $25,000 4 $25,000 Median To find the median, first make sure the salaries are in descending or ascending order. Since we have an even number of salaries, divide the total number of laries by 2, i.e., 10 / 2 = 5, and make 5 $28,000 6 $28,000 7 $28,000 8 $30,000 9 $30,000 10 $45,000 salaries by 2, i.e., 10 / 2 = 5, and make 2 groups of 5 salaries each. Again, since we have even number of
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This note was uploaded on 02/29/2012 for the course MATH 120 taught by Professor Adjunct during the Fall '11 term at Northern Virginia Community College.

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MTH 120 - Finding the Mean, Median, & Mode 2 - To...

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