Joe tossed two fair pennies and peeked at them. He said,
At least one is "Heads" but I won't tell you which. What is the probability that the other coin is also "Heads?" Type your probability, expressed as a percentage, in the box below: % Please check your answer. When you are done, push the button below. Thank You!
Type your probability, expressed as a percentage, in the box below:
Please check your answer. When you are done, push the button below.