The Total solution for NCERT class 6-12
Find the standarddeviation for the following distribution:
x:
4.5
14.5
24.5
34.5
44.5
54.5
64.5
f:
1
5
12
22
17
9
4
= 100 [1.857 – 0.0987]
= 100 [1.7583]
Var (X) = 175.83