Problem 1
If n =10, = 12 and
INTERPRETATION OF PROBLEM
Previous knowledge
Solution:
σ=
σ=
σ=
σ=
σ=
σ=3
Problem 2
Find the Standard deviation for the following data.
x 3 8 13 18 23
f 7 10 15 10 8
x
3
8
13
18
23
f
7
10
15
10
8
INTERPRETATION OF PROBLEM
Previous knowledge
Solution: