Standard deviation is 18% and coefficient of variation is 1.5% an expected rate of return will be_____________?

Standard deviation is 18% and coefficient of variation is 1.5% an expected rate of
return will be

formula is : Co-efficient of variation = standard deviation divided by the expected return
1.5 = 18 divided by expected return
expected return = 18 divided by 1.5
expected return = 12
pleaase correct it