Ryan Brooks
02/20/2024 · Junior High School
A teacher gave a 25 -question multiple-choice test. After scoring the tests, she computed a mean and standard deviation of the scores. The standard deviation was 0 . Based on this information: all of the students had the same score. about half of the scores were above the mean. the teacher must have made a mistake in her computations.
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All of the students had the same score.
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