Answer:
Std. dev. = 3.46
Explanation:
The standard deviation is the square root of the variance.
Given that, Varience of 10 numbers = 12
S.D = √V
Where,
S.D = Standard Deviation
V = variance
S.D = √12
S.D = 3.46
Both standard deviation and variance are derived from the mean of a given data set. If the mean is simply the average of all data points, the variance measures the average degree to which each point differs from the mean.
