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10 July, 14:51

In a frequency distribution, the mid-value of a class is 12 and its width is 6. The lower

limit of the class is:

(A) 6 (B) 9 (C) 12 (D) 18

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Answers (2)
  1. 10 July, 15:00
    0
    Mid value=6

    ∴6/2=3

    ∴to obtain the class,

    3 must be subtracted from 12 to get lower limit,

    & 3 must be added to 12 to get upper limit.

    ⇒lower limit=12-3

    =9

    ∴answer in option"B"
  2. 10 July, 17:53
    0
    The correct answer is D
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