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Social ScienceThe mean scores for students in a statistics course (by major) are shown below. What is the mean score for the class?9engineering majors: 905math majors: 9413business majors: 76The class's mean score is________(Type an integer or a decimal rounded to two decimal places as needed.)
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 |
Expert Answer
Weighted Mean:
The general formula for weighted mean is,
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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