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The frequencies of three class intervals 54 – 58, 59 – 63, 64 – 68 of a distribution arerespectively 4, 8 and 12. The frequency density of the 2nd class is

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Question:

The frequencies of three class intervals 54 – 58, 59 – 63, 64 – 68 of a distribution arerespectively 4, 8 and 12. The frequency density of the 2nd class is

A.

1

B.

1.2

C.

1.6

D.

2

Answer» d. 2

Note: The above multiple-choice question is for all general and Competitive Exams in India.