Question

median class for the following data is

Class Frequency

20 − 40 10

40 − 60 12

60 − 80 20

80 − 100 22

A) 20 − 40 B) 40 − 60

C) 60 − 80 D) 80 − 100​

Answer 1

$\Huge\bf\maltese{\underline{\purple{αηsωεя࿐}}}\maltese$

Since \frac{100}{2} belongs to the cumulative frequency (65) of the class interval 69.5 – 79.5, therefore 69.5 – 79.5 is the median class. Lower limit of the median class = ℓ = 69.5. Hence, the median of given frequency distribution is 74.50

Answer 2

$\huge\mathbb\fcolorbox{purple}{lavenderblush}{✰αηsωεя࿐}$

Since \frac{100}{2} belongs to the cumulative frequency (65) of the class interval 69.5 – 79.5, therefore 69.5 – 79.5 is the median class. Lower limit of the median class = ℓ = 69.5. Hence, the median of given frequency distribution is 74.50