Question

Please help :(

Find the standard deviation of the set of data below to the nearest tenth.

14,11,9,6,10,16,15,13,9,12,19,10

Answer 1

3.4 nearest tenth

Explanation:

Standard Deviation, σ: 3.4399612400917

Count, N: 12

Sum, Σx: 144

Mean, μ: 12

Variance, σ2: 11.833333333333

Steps

σ2 = Σ(xi - μ)2

N

=

(14 - 12)2 + ... + (10 - 12)2

12

=

142

12

= 11.833333333333

σ = √11.833333333333

= 3.4399612400917

Hope this helps ya!

Sorry this didn't have the symbols I needed so that's why it's a little confusing.