Answer:
4) No, because over the long run your expected value is less than the cost to play
Step-by-step explanation:
The expected value is ...
0.51×0.99 + 0.49×1.01 = 0.5049 +0.4949 = 0.9998
This expected value is less than the cost to play, so you will lose money in the long run. You should not play.