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Data Interpretation

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Data Interpretation

by heshamelaziry » Sat Oct 17, 2009 8:00 pm
Ann 450,000
Bob 360.000
Cal 190.000
Dot 210.000
Ed 680.000

The above shows the total sales recorded in July for the 5 sales people. It was discovered that one of Cal's sales was incorrectly recorded as one of Ann's sales.
After error was corrected, Ann's total sales was still higher than cal's total sales, and the median of the 5 sales totals was $330.00. What was the value of the incorrectly recorded sale ????

OA [spoiler]$120.000[/spoiler]
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by Talkativetree » Sun Oct 18, 2009 6:38 pm
Ann 450,000
Bob 360.000
Cal 190.000
Dot 210.000
Ed 680.000

The above shows the total sales recorded in July for the 5 sales people. It was discovered that one of Cal's sales was incorrectly recorded as one of Ann's sales.
After error was corrected, Ann's total sales was still higher than cal's total sales, and the median of the 5 sales totals was $330.00. What was the value of the incorrectly recorded sale ????

rearranging the sales
Cal 190.000
Dot 210.000
Bob 360.000
Ann 450,000
Ed 680.000

The current median of the sales is 360. Knowing that the real median is 330, means that either Cal or Ann has 330. This means adding 140 to Cal, or subtracting 120 from Ann.

because the sale is being recorded in Ann's current sale, then that means we should subtract the amount from Ann, so 120 is the answer.
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