Answer:
The standard deviation of the variable is 13.
Step-by-step explanation:
Standard Deviation-
Standard deviation is a measure of how spread out or dispersed the numbers are.
Variance-
Variance is the average of the squared differences from the mean.
Square root of variance is standard deviation.
As given, the variance of a variable is 169, hence its standard deviation will be,
\(=\sqrt{169}=13\)
