Final answer:
The statement is true. The average minimum number of true/false questions needed to reduce uncertainty is given by the logarithm base 2 of the number of possible outcomes.
Step-by-step explanation:
The statement is true. The amount of uncertainty reduced by an event can be measured using the concept of information. Information is measured in units called bits, and each true/false question can be considered as a bit of information.
In the context of reducing uncertainty, the average minimum number of true/false questions that would be asked to reduce uncertainty is given by the logarithm base 2 of the number of possible outcomes. This is because the logarithm base 2 gives us the number of bits needed to represent the number of outcomes. Therefore, the statement is true.