The reaction time, in seconds, of 12 people to a stimulant was recorded as follows:
2.6 3.6 3.1 4.6 2.7 3.3 2.8 4.7 3.1 2.4 4.5 1.9
Calculate the data range.
1.9
4.7
2.8
4.5
Data range = Maximum value - Minimum value
Data range = 4.7 - 1.9
Data range = 2.8
Therefore, the data range for the reaction time of the 12 people is 2.8 seconds.