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Justins test grades were 78 84 74 and 80 what was his weighted average if the test grades are wieghted 4 5 2 and 3 respectively?
Wiki User
∙ 10y ago
74=((78*4)+(84*4)+(74*2)+(80*3))/(4+5+2+3)
3.5=(4+5+2+3)/4
Wiki User
∙ 10y ago
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