We are given the following set of numbers.
38, 47, 43, 44, 44, 41, 44
We are asked to find the range and standard deviation.
Range:
The range is the difference between the maximum and minimum values in the data set.
The maximum value in the data set is 47.
The minimum value in the data set is 38.
So, the range is
The range is 9.
Standard deviation:
The standard deviation of a sample of data set is given by