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Savatey [412]
3 years ago
6

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 las

t day of class. Here are summary statistics for the scores of a recent group of students
Advanced Placement (AP)
1 answer:
Andreas93 [3]3 years ago
5 0

Answer:

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

Explanation:

Khan academy

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