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Choose the best answer:
1. Students made the following test scores: 100, 70, 68, 68
66, 66, 65, 65, 65, 65.
Which measure of central tendency (average)
would be higher?
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2. Which of the following would have the LARGEST standard deviation?
a. 1,10,30,40
b. 99,98,101,102
c. 10,15,25,30
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3. Which of the following indicates a stronger relationship? A correlation coefficient of
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YOU ARE CORRECT.
The mean would be pulled toward the score of 100 which was significantly higher than the other scores.
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No, the answer to number one was "a. mean" because the mean would be pulled toward the higher score of 100.
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YOU ARE CORRECT.
Those scores were further apart from each other and thus would produce a higher standard deviation.
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No, the answer to number two was "a" (scores of 1, 10, 30, 40).
Those scores were further apart from each other and thus would produce a higher standard deviation.
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YOU ARE CORRECT.
The answer to number three was -.75.
Correlations are not higher than 1.0.
The minus sign describes the direction of a relationship but not the strength of it.
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No, the answer to question number three was "b. -.75".
Correlations are not higher than 1.0. The minus sign describes the direction of a relationship but not the strength of it.
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If you missed any of these questions you may want to first visit the statistics primer before going to the other measurement primer programs.
If you are comfortable with your knowledge of basic statistics, you may, though, want to skip the statistics primer and go on to one of the other programs (you can always come back if you find a need to review the statistics primer material).
Select a Program
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