The range of the given data set is 4.
Step-by-step explanation:
- Given data set is 9, 9, 6, 5, 9, 6, 7
- Here the least value is 5 and the maximum value is 9.
- To find the range, we have to arrange the data in the increasing order of value, so it is arranged as, 5, 6, 6, 7, 9, 9, 9.
- Now, we have to find the difference between the maximum and the least value as, 9 - 5 = 4
- So the range of the given data set is 4.
