Question

what is median class ??​

Answer 1

• Step 1: Prepare a table containing less than type cumulative frequency with the help of given frequencies. ... Class-interval of this cumulative frequency is the median class-interval. Step 3 : Find out the frequency f and lower limit l of this median class.

Answer 2

Answer:

Prepare a table containing less than type cumulative frequency with the help of given frequencies. ... Class-interval of this cumulative frequency is the median class-interval. Step 3 : Find out the frequency f and lower limit l of this median class.

Step-by-step explanation:

of Grouped Frequency Distribution

Median = ℓ + N2–Cf×h

where,

ℓ = lower limit of median class interval

C = cumulative frequency preceding to the median class frequency

f = frequency of the class interval to which median belongs

h = width of the class interval

N = f1 + f2 + f3 + … + fn.

Working rule to find median

Step 1: Prepare a table containing less than type cumulative frequency with the help of given frequencies.

Step 2 : Find out the cumulative frequency to which N2 belongs. Class-interval of this cumulative frequency is the median class-interval.

Step 3 : Find out the frequency f and lower limit l of this median class.

Step 4 : Find the width h of the median class interval

Step 5 : Find the cumulative frequency C of the class preceding the median class.

Step 6 : Apply the formula,

Median = ℓ + N2–Cf×h to find the median