Concept explainers
To calculate: the
Answer to Problem 79E
Mean is 85
Out of 14 values, 7 are above mean and 7 are less than mean. Thus here mean is a balance point.
Explanation of Solution
Given:
86 | 84 | 91 | 75 | 78 | 80 | 74 |
87 | 76 | % | 82 | 90 | 98 | 95 |
Calculation:
The mean for Joe's first 14 quiz grades in a marking period is below:
The mean tells us how large each observation in the data set would be if the total were split equally among all the observations i.e. mean is a "fair share". From this we interpret that out of 14 values, 7 are above mean and 7 are less than mean. Thus here mean is a balance point.
Conclusion:
Therefore, mean is 85
Out of 14 values, 7 are above mean and 7 are less than mean. Thus here mean is a balance point.
Chapter 1 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Pre-Algebra Student Edition
Thinking Mathematically (6th Edition)
Calculus: Early Transcendentals (2nd Edition)
Elementary Statistics (13th Edition)
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