Answer: 50% chance of success.
Step-by-step explanation:
A high achievers most times isn't very sure of the outcome of an event, but when there is 50% chance of him achieving his goal, he takes the move and ensures to give in his best while hoping for the best. The ability to take a risk in the midst of uncertainty separates a low achiever from a high achiever. As high achievers are able to take wise risks when the need demands.