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Question -

In a frequency distribution, the mid value of a class is 15 and the class intervals is 4. The lower limit of the class is
(a) 10
(b) 12
(c) 13
(d) 14



Answer -

Mid value = 15 and class interval is 4
∴ Lower limit = 15 – 4/5 = 15 – 2 = 13 (c)

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