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If the mean of 3, 1, 5, x and 9 is 4 thenthe value of x is |
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Answer» ★ Mean = (3+1+5+x+9)/5 4 = (3+1+5+x+9)/5 20 = 18 + x x + 18 = 20 x = 20 - 18 x = 2 |
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