If you flip a fair coin 1 million times, what proportion of those tosses do you expect will be heads?

When you flip a fair coin 1 million times, the proportion of tosses that will be heads is expected to be 0.5. This is because a fair coin has two sides, heads and tails, each with an equal probability of landing face up. Over a large number of flips, the law of large numbers ensures that the results will average out to the expected probability. Therefore, the correct answer is c) 0.5.