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Mathematics, 22.01.2021 18:40 u8p4

Ms. Kelly runs a free course in which she tutors individuals who want to improve their scores on their state test. The course consists of multiple sessions, and students may come to any or all sessions if they choose. After the test scores are released, Ms. Kelly contacts each of her students to see how much their scores improved from their previous test. Ms. Kelly gathers the following data.

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