In a shopping mall, shoppers who use a reward points card get a 10% discount on every transaction. if the average transaction is $450 for customers with these cards, and $500 for other customers, what happens to the expected value of a transaction?

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000