There are 10 multiple-choice questions in a math exam, and each multiple-choice question has 4 options, of which one and only one option is correct.

Find the probability that 10 questions are all correct.

Solution: All correct probabilities = (1/4) 10.

=0.0000009536743 1640625

=0.00009536743 1640625%

Is it much lower than the probability of winning the lottery? !

Therefore, learning must not be a little lucky!