Hello, I need help understanding how to do this problem.

Is a currency whose value is tied to another currency, meaning that the exchange is fixed

In an improper fraction, is the numerator equal to, less than, or greater than the denominator

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