Solution Found!
Finding the Weighted Mean In Exercise, find
Chapter 2, Problem 46E(choose chapter or problem)
Problem 46E
Finding the Weighted Mean In Exercise, find the weighted mean of the data.
Scores The mean scores for students in a statistics course (by major) are shown below. What is the mean score for the class?
9 engineering majors: 85
5 math majors: 90
13 business majors: 81
Questions & Answers
QUESTION:
Problem 46E
Finding the Weighted Mean In Exercise, find the weighted mean of the data.
Scores The mean scores for students in a statistics course (by major) are shown below. What is the mean score for the class?
9 engineering majors: 85
5 math majors: 90
13 business majors: 81
ANSWER:
Answer
Step 1 of 1
(a)
We are asked to find the weighted mean of the data.
The mean scores for students in a statistics course (by major) are shown below.
We are asked to find the mean score for the class.
9 engineering majors: 85
5 math majors: 90
13 business majors: 81
A weighted mean is the mean of a data set whose entries have varying weights.
The weighted mean is given by