could someone please help me understand the answer

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Oct 31, 2020, 11:43:08 AM10/31/20

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Nov 1, 2020, 10:59:05 PM11/1/20

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It's the mid-point of the class 55-60. Consider it like average.

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Nov 2, 2020, 12:06:23 AM11/2/20

to Discussion forum for Statistics for Data Science I, anandd...@gmail.com, Arindam's Adventure

Hi,

Class mark means the midpoint of the interval. Here, the interval is [55, 60) whose midpoint is 57.5.

Thanks,

Nitin Jha

Course support team

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