I Have Two Show Two Ways Find Average Strokes Round Golf Numbers I Have

I have two show two ways to find the average of strokes per round of golf the numbers i have are the total par is 72 round 1=74 round 2=73 round 3=76 round 4=69 round 5=70 round 6=71 round 7=74 round 8=73 round 9=68 round 10=71