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Calculate the mean of the grouped data from the given frequency distribution. (Round to nearest tenth) Class Frequency (f) 30 to 39 2 40 to

Calculate the mean of the grouped data from the given frequency distribution. (Round to nearest tenth)

Class	Frequency (f)
30 to 39	2
40 to 49	2
50 to 59	2
60 to 69	5

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