Answer:
12
Step-by-step explanation:
How to find Rage:
First rearrange the set data,
[tex]3 \: 5 \: 8 \: 12 \: 15[/tex]
The substract the highest score and lowest score, for exp:
[tex]15 - 3 = 12[/tex]
So the rage is 12
Brainliest would be appreciated :))