Kelli is in charge of a game booth at the school carnival. The game has two simple rules.
• Randomly pick one top number and one bottom.
• If the product of the two numbers is greater than or equal to 45, you win a prize.
3 5 8 10
4 7 9
Participants achieving a winning score of 70 or higher in four consecutive
attempts will receive a large stuffed animal. What is the probability of this
occurring?