IF the class marks in a frequency distribution are 19.5, 26.5, 33.5, 40.5 then the class corresponding to the class mark 33.5 is:

1. 16-23 2. 23-30 3. 30-37 4.37-41

Question

IF the class marks in a frequency distribution are 19 5, 26 5,
33 5, 40 5 then the class corresponding to the class mark 33 5
is:
1 16-23 2 23-30 3 30-37 4 37-41

Lalit Mehra · Accepted Answer

We know that,

$Class mark = \frac{Upper limit of the class interval + Lower limit of the class interval}{2}$

Class mark of the class interval, 16 – 23 = $\frac{16 + 23}{2} = 19.5$

Class mark of the class interval, 23 – 20 = $\frac{23 + 30}{2} = 26.5$

Class mark of the class interval, 30 – 37 = $\frac{30 + 37}{2} = 33.5$

Class mark of the class interval, 37 – 41 = $\frac{37 + 41}{2} = 40.5$

Thus, the class corresponding to the class mark, 33.5 is 30 – 37.

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IF the class marks in a frequency distribution are 19.5, 26.5, 33.5, 40.5 then the class corresponding to the class mark 33.5 is: 1. 16-23 2. 23-30 3. 30-37 4.37-41

IF the class marks in a frequency distribution are 19.5, 26.5, 33.5, 40.5 then the class corresponding to the class mark 33.5 is:

1. 16-23 2. 23-30 3. 30-37 4.37-41