Question

Finde the standard deviation of 4,8,10,12 and 16.

Answer 1

mean=(4+8+10+12+16)/5=5

S.D=41

Answer 2

Answer:

Given, n = 5, sum = 50

Mean Deviation = ∑|δ|/n

M = 50/5 = 10

Standard deviation of 4, 8, 10,12, 16, are,

∑δ^2 =|4 - 10|^2 + |8 - 10|^2 + |10 – 10|^2 + |12 - 10|^2 + |16 - 10|^2 = 80

σ=√∑δ^2/n =√80/5 =√16

Standard deviation σ = 4