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

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

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Raw Data N Salary 1 \$25,000 2 \$25,000 3 \$25,000 4 \$25,000 5 \$28,000 To answer the questions, we should first convert the frequency table into a table of raw data. 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 5 \$28,000 Mean To find the mean, first add all of the salaries, then divide the sum of the salariesbythetotalnumberofsalaries. The sum of the salaries = \$289,000 6 \$28,000 7 \$28,000 8 \$30,000 9 \$30,000 10 \$45,000 \$289,000 / 10 = \$28,900 Mean = \$28,900
Raw Data N Salary 1 \$25,000 2 \$25,000 3 \$25,000 4 \$25,000 5 \$28,000 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 salaries by 2, i.e., 10 / 2 = 5, and make 6 \$28,000 7 \$28,000 8 \$30,000 9 \$30,000 10 \$45,000 2 groups of 5 salaries each. Again, since we have even number of salaries, the median is the average of the two adjacent numbers; i.e., (\$28,000 + \$28,000) / 2 = \$28,000 Median = \$28,000

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Raw Data N Salary 1 \$25,000 2 \$25,000 3 \$25,000 4 \$25,000 5 \$28,000 Mode Tofindthemode,wesimplyneedto identify the salary that occurs most often. From either the table of raw data or the original frequency table ( see nextslide ), we can quickly ascertain 6 \$28,000 7 \$28,000 8 \$30,000 9 \$30,000 10 \$45,000
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MTH 120 - Finding the Mean, Median, &amp; Mode 2 - To...

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