The store manager of a discount department store is studying the weekly wages of the part-time employees. The table profiles the employees.
a. Find the sum of the wages in each class.
b. What is the sum of all of the wages in the frequency distribution?
c. Find the number of employees in the frequency distribution.
d. What is the mean weekly wage in the frequency distribution?
e. Find the median class of the frequency distribution.
f. Estimate the median weekly wage in the frequency distribution.
g. Explain why both the mean and median are good measures of central tendency in this situation.