As an incentive to get new customers, the local branch of a bank launched 'bouncing for bucks.' During this week long event, an customer opening a new checking account with the bank would have the opportunity to throw a bouncy rubber ball into a large box divided into squares. Each square was labeled with a dollar amount that would be deposited into his/her checking account. The way the box was labeled is shown below. What is the probability that three customers in a row do not get $50? Round to three decimals.
| 10 |
30 |
10 |
30 |
10 |
| 20 |
10 |
50 |
10 |
20 |
a. 0.125
b. 0.300
c. 0.729
d. 0.970
e. 0.001