Intro to Statistics
Weighted Mean Worksheet 1
Find the weighted mean of the data.
1.
Source
Score, x
Homework
60
Midterm
75
Project
80
Speech
70
Final Exam
62
Name_________________
Weight,w
5%
35%
20%
15%
25%
2. For the month of April, a checking account has a balance of $700 for 24 days, 1215 for days,
and 375 for 4 days. What is the average balance for April?
3. The average salaries for 25 employees at a company is given. Find the average starting
salary?
8 with MBAs: $55,500
17 with BAs in business: $33,000
4. A student receives the following grades, with an A worth 4 points, a B worth 3 points, a C
worth 2 points, and a D worth 1 point. What is the student’s mean grade point score?
A in 2 three‐credit classes, B in 1 two‐credit class, D in 1 three‐credit class, and an C in 1 four‐
credit class.