Mr. McGee, the owner of The Laundry Shop (from problem 10-95) has a different question that he wants to answer with data and probability. He wants to estimate the probability that a customer who comes into his store will buy a washer or dryer. He collected the following data during one week: $177$ customers came to his store, $88$ purchased washers, $64$ purchased dryers, and $69$ did not make a purchase.  

1. Using this data, what is the probability that the next customer who comes to his store will purchase a washer or a dryer?

   Hint (a):

   $\frac{\text{number of purchase}}{\text{total number of customers}}$

   Answer (a):

   $61\%$

2. Mr. McGee promises his salespeople a bonus if they can increase the probability that the customers who buy washers also buy dryers. For the week’s data above, what is the probability that if a customer bought a washer, he or she also bought a dryer?

   Answer (b):

   $\frac{44}{88}=50\%$