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Find the z-score for the value 78, when the mean is 98 and the standard deviation is 6. OA. z=0.73 OB. z=-0.73 OC. z= -3.50

Find the z-score for the value 78, when the mean is 98 and the standard deviation is 6. OA. z=0.73 OB. z=-0.73 OC. z= -3.50 OD. z=-3.33

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