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(See Steps) Ms. Take, a professor of statistics, has two groups of students taking STAT 292. One group, with students, with 40 groups, and a mean grade

Question: Ms. Take, a professor of statistics, has two groups of students taking STAT 292. One group, with students, with 40 groups, and a mean grade of 62 on the midterm exam, and another group of 50 students had a mean grade of 70 on the midterm exam. What is the combined mean grade of both groups? Express your answer to two decimal places of accuracy.

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