What is the relationship between mean, median, and mode? Under what circumstances are they equal? 

Part 1. What is the relationship between mean, median, and mode? Under what circumstances are they equal?

Part 2. Over the next  several weeks, we will be observing a company that develops, markets,  manufactures, and sells integrated wide-area network access products.  See the attached dataset for the salary paid to employees

Calculate the simple and weighted arithmetic mean of salary paid

Calculate to Coefficient of Range

Find the average deviation from mean