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What are the deviations from the average for each student

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Question - Suppose a class has 5 students. The test grades in this class are:

1. 85

2. 90

3. 71

4. 56

5. 98

What is the test average?

What are the deviations from the average for each student?

What is the squared deviation from the average for each student?

What is the sum of squared deviations?

What is the sum of squared deviations, divided by the degrees of freedom?

What is the standard deviation of test scores for these 5 students?

Reference no: EM133162155

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