SOLUTION: For the following set of data, find the coefficient of variance to the nearest tenth percent (13,5,6,8,1,6,5,4,12,5,6,4,8,4,4). email address: donnadjsewfine65@gmail.com

Algebra ->  Probability-and-statistics -> SOLUTION: For the following set of data, find the coefficient of variance to the nearest tenth percent (13,5,6,8,1,6,5,4,12,5,6,4,8,4,4). email address: donnadjsewfine65@gmail.com      Log On


   

Question 1132067: For the following set of data, find the coefficient of variance to the nearest tenth percent (13,5,6,8,1,6,5,4,12,5,6,4,8,4,4).

email address: donnadjsewfine65@gmail.com
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
given set:
13, 5, 6,+8, 1,+6, 5, 4, 12, 5, 6, 4,+8,+4, 4
Mean:

mu+=+91%2F15
mu=+6.0666

Standard Deviation
delta=sqrt%28%281%2F%28n-1%29%29%2Asum%28x%5Bi%5D-X%29%5E2%29

to make it simple first find the sum

=
sum%28x%5Bi%5D-X%29%5E2=136.9333334


delta=+sqrt%28+%281%2F15-1%29+%2A+sum%28X%29%29
delta=+sqrt%28+%281%2F15-1%29+%2A+136.9333334%29

delta=+sqrt+9.78063076

delta=+3.1274

Coefficient of Variance
var=+delta%2Fmu
var=+3.1274+%2F+6.0666
var+=+0.5155