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11. The harmonic mean of 2, 4, 8 be 24/7, then the value of a is(A) 9(B) 4(C) 6(D) 812. If y=-2x 5 and standard deviation of r is 12, then standard deviation of y is |
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Answer» answer is 9 Step-by-step EXPLANATION: eieurueuwuwu |
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