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Find the missing frequency if x̄ = 15.587

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Find the missing frequency if x̄ = 15.587

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Let K be the missing frequency

15.587 = 

∴ Missing frequencyK = 12.

15.587(34 + K) =+ 17K

529.958 + 15.587K = 513 + 17K

15.587K – 17K = 513 – 529.958

-1.413K = -16.958

K = (16.587/1.413) = 12.

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