Answer:
The range of given data set is 90.
Step-by-step explanation:
We are given the following data:
20.9, 33.1, 21.8, 58.5, 23.5, 110.9, 30.4, 24.9, 74.1, 60.3, 40.4, 45.4
When this data is arranged in ascending order, we get:
20.9
, 21.8
, 23.5
, 24.9
, 30.4
, 33.1
, 40.4
, 45.4
, 58.5
, 60.3
, 74.1
, 110.9
Range is a measure of dispersion and can be easily calculated.
Formula:
![Range = \text{Maximum values - minimum value}](https://tex.z-dn.net/?f=Range%20%3D%20%5Ctext%7BMaximum%20values%20-%20minimum%20value%7D)
![Range = 110.9 - 20.9 = 90](https://tex.z-dn.net/?f=Range%20%3D%20110.9%20-%2020.9%20%3D%2090)
Thus, the range of given data set is 90.