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2. Consider the partial data set in the table represents online hours spent shopping by age and income. The average and standard deviation for the

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2. Consider the partial data set in the table represents online hours spent shopping by age and income. The average and standard deviation for the full data set is $47,667 and $14,292, respectively. Using z-scores to standardize the observations, what is the average standard deviation of Income for the three provided? T+ On-Line ID Income Age Hours 2201 62000 48 2 2202 58000 52 4 2203 53000 44 5 A. 1.003 B. 0.7320 C. 0.2410 D. 0.6997

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