Answer:
The sample space is
S= {BH,GH,YH,OH,BT,GT,YT,OT}
Explanation:
The sample space refers to the set of all the possible outcomes.
The possible outcomes are:
Head and blue ball: BH
Head and green ball: GH
Head and yellow ball: YH
Head and orange ball: OH
Tail and blue ball: BT
Tail and green ball: GT
Tail and yellow ball: YT
Tail and orange ball: OT
The sample space is S= {BH,GH,YH,OH,BT,GT,YT,OT}