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O more than 2 two none O one QUESTION 3 Below is a frequency table for the Quiz grades (x) for students in a statistics class. Xfcfc% 20 2 40 100.0 19 4 38 95. 18 6 34 85.0 17 13 28 70.0 16 6 15 37.5 15 4 9 22.5 14 3 5 12. 13 2 2 5.0 What percentage of students received a grade of 15 or less? O 16 O 22.5 QUESTION 4 independent samples t-tests compare 2 groups
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2.2.5 %

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