Standard deviations, σ, is generally preferred over range. Reason being, it is calculated from all the data and when there is outliers it will not be impacted as much as the range. It is great to not also that, The IQR is preferred to the standard deviation when the distribution is very highly skewed or when there are severe outliers, because the IQR is less sensitive to this features than standard deviation.
It can be used to hold a prisoner for the police
Round 2.81 to 2.8 and 3.72 to 3.7. Add both together to get 6.5
70% all you have to do is divide the 14 by 20
Given:
Consider the below figure attached with this question.
To find:
The value of 
.
Solution:
The given functions are:
Now,
We know that,
Adding 3 on both sides, we get
So, for all values of x.
Hence, the correct option is A.
