Fifty undergraduate students answered a survey. The results are shown here.
Q-2a: What is the average expected salary of these undergraduates upon graduation? (Round to two decimals)
Q-2b: What is the median amount spent on textbooks? (Round to two decimals) Q-2c: What is the mode with respect to the number of affiliations to clubs and other organizations of these undergraduates? Q-2d: What is the standard deviation of these students' GPAs? (Round to two decimals) Q-2e: Using coefficients of variation, tell me which has more variation, the age of the students in this sample or the amounts that they spent on textbooks.
ANSWERS
Q-2a) The average expected salary, or the mean salary, of undergraduates upon graduation can be found by using the function =AVERAGE(range of salaries)
47.3
The formula is the equivalent of adding all of the salaries and dividing it by the total number of students surveyed.
The average expected salary of undergraduates upon graduation is 47.3, or, if salary is expressed in thousands, then the average expected salary of undergraduates is $47,300.
Q-2b) The median amount spent on textbooks, or, the middle number when all amounts are listed in numerical order, can be found by using the function =MEDIAN(range of