Question

(Q16)The weekly pocket money of the students of class X of a school is given in the following table:

Find the median.


explain it with all the steps if wanna be marked as brainliest

Answer 1

Please find the answer in the attachment

Answer 2

Answer:

115.03

Step-by-step explanation:

We need to get the cumulative frequencies of the classes.

0 - 40 40 - 80 80 - 120 120 - 160

5 12 27 37

160 - 200 200 - 240

42 50

Median = Li + [{n/2 - C} × h] / f

L = Lower limit of the median class.

n = Total frequency

C = Cumulative frequency of preceding class.

h = Class interval

f = Frequency of the median class.

50/2 = 25

25 lies in class 80 - 120

h = 120.5 - 79.5 = 41

f = 15

C = 12

Li = 79.5

Doing the substitution we have :

Median = 79.5 + [{25 - 12} × 41]/15

79.5 + 35.53 = 115.03

= 115.03