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Joshua teaches an SAT preparation class where each student takes a pre-test on the first day of class and a post-test on the last day of class. Here are summary statistics for the scores of a recent group
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Joshua teaches an SAT preparation class where each student takes a pre-test on the first day of class and a post-test on the last day of class. Here are summary statistics for the scores of a recent group of students

User Tubeliar
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4 votes

Answer:

Standard Deviation of D: It cannot be determined from the information given because the scores are not independent.

Step-by-step explanation:

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User Emdad
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