SOLUTION: A teacher allows the students to each "throw out" their lowest test scores in order to increase their overall grade. The original mean score of 5 test is 75.2. After the removal
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Question 177003: A teacher allows the students to each "throw out" their lowest test scores in order to increase their overall grade. The original mean score of 5 test is 75.2. After the removal of the lowest test, the mean score becomes 80.25. What was the score of the removed test? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A teacher allows the students to each "throw out" their lowest test scores in order to increase their overall grade. The original mean score of 5 test is 75.2. After the removal of the lowest test, the mean score becomes 80.25. What was the score of the removed test?
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Original Point total = 5*75.2 = 376
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Let the removed score be "x".
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New mean score Equation: (376-x)/4 = 80.25
376-x = 321
x = 376-321
x = 55 (the low score that was removed)
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Cheers,
Stan H.
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