Corrections

Question 17

This information can be determined using the data collected, but not the way described in this option. One way to determine the method of payment that was used in the greatest number of transactions during the 7-day period is to sort the data by the method of payment as described. Instead of adding the number of items purchased for each type of payment, a count of each payment type needs to be computed. If the counts are stored in a new field, then the counts can be sorted to find the method of payment used in the greatest number of transactions.

Question 9

Different users may abbreviate city names differently. This may require the student to clean the data to make it uniform before it can be processed.

MCQ Corrections MCQ

A quiz. Take what went wrong and answer how you can fix it in the future