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State true or false.

Pulse rate (per minute) of 30 persons were recorded as 61, 76, 72, 73, 71, 66, 78, 73, 68, 81, 78, 63, 72, 75, 80, 68, 75, 62, 71, 81, 73, 60, 79, 72, 73, 74, 71, 64, 76 and 71.

A frequency table using class-intervals of equal width, one class-interval being 60-65, is,

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True

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answer is A.

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Detailed Solution

It is given a data of pulse rate of 30 persons.
Construction of frequency distribution table in class interval.
Starting from the class interval 60 – 65, the frequency distribution table is given by,
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Hence the given table is true.
Hence, option 1 is correct.

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