Depends on how you are scoring. If you weight the accuracy of the (identical) beliefs of the 99 copies that see the same color 99 times as much as the accuracy of the one other copy it’s .99. If you instead weight the accuracy the copies who see red and the copies who see blue equally, regardless of the number in both sets (perhaps because one color is randomly chosen to make a decision that affects all copies equally) it’s .5.
Depends on how you are scoring. If you weight the accuracy of the (identical) beliefs of the 99 copies that see the same color 99 times as much as the accuracy of the one other copy it’s .99. If you instead weight the accuracy the copies who see red and the copies who see blue equally, regardless of the number in both sets (perhaps because one color is randomly chosen to make a decision that affects all copies equally) it’s .5.