Page 182 - Artificial Intellegence_v2.0_Class_11
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MEDIAN (Individual Series):
1. Arrange Data in Ascending Order
Wages Wages
(X) (X)
2. Median =
500 100 1
n1 + th
200 200 2 Size of item
2
100 300 3
6 + 1 th
300 400 4 = 2 item
600 500
th
= 3.5 item
400 600
N = 6 3 item + 4 item 300 + 400
th
rd
= =
2 2
= 350
MEDIAN: (frequency Distribution Series):
(Class Interval Series)
Wages f cf 1. Find Cumulative Frequency (cf)
(X) th
n
0 – 100 2 2 2. Median = Size of item
Class
2
100 – 200 1 3 = (10/2) item = 5 ITEM
th
th
200 – 300 3 6 5 item lies in Cumulative Frequency 6
th
300 – 400 3 9 Hence Median Class = 200 – 300
6. Apply formula
400 – 500 1 10
N = 10 n − cf
2
=
l = 200 Ml + f x i
1
1
cf = 3
10
f = 3 − 3
2
=
M 200 + 3 x 100
Median = 266.67
180 Touchpad Artificial Intelligence (Ver. 2.0)-XI

