Question

Asked Mar 6, 2019

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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: 90 |
5
math majors: 94 |
13
business majors: 76 |

The class's mean score is________

(Type an integer or a decimal rounded to two decimal places as needed.)

Step 1

**Weighted Mean:**

The general formula for weighted mean is,

Step 2

The mean scores are:

*x-bar i:* 9, 5 and 13

The total number of engineering majors is 9, math majors are 5 and business majors are 76.

*Obtain mean score for the class:*

Mean class score...

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