Q1: According to the following table, which describe the grade distribution of students. Find the mean,...

Q1: According to the following table, which describe the grade distribution of students. Find the mean, median class, median, modal class and mode for this distribution.

1-Mean.

2-Median Class.

3-Median.

4-Modal Class.

5-Mode.

Frequency	Grade
2	51 - 55
7	56 - 60
8	61 - 65
4	66 - 70

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