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 $47,701 and $14,362, respectively. Using z-scores to standardize the observations, what is the average standard deviation of Income for the three provided?
A) 0.926
B) 0.3780
C) 0.8640
D) 0.7637

Question

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 $47,701 and $14,362, respectively. Using z-scores to standardize the observations, what is the average standard deviation of Income for the three provided? 
A) 0.926 
B) 0.3780 
C) 0.8640 
D) 0.7637

Quizplus · Accepted Answer

The Answer of 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 $47,701 and $14,362, respectively. Using z-scores to standardize the observations, what is the average standard deviation of Income for the three provided? 
A) 0.926 
B) 0.3780 
C) 0.8640 
D) 0.7637

Consider the Partial Data Set in the Table Represents Online