In a sales effectiveness seminar, a group of sales representatives tried two approaches to selling a customer a new automobile: the aggressive approach and the passive approach. For 1160 customers,...

In a sales effectiveness seminar, a group of sales representatives tried two approaches to selling a customer a new automobile: the aggressive approach and the passive approach. For 1160 customers, the following record was kept:

Suppose a customer is selected at random from the 1160 participating customers. Let us use the following notation for events:A = aggressive approach,Pa = passive approach,S = sale,N = no sale. So,P(A) is the probability that an aggressive approach was used, and so on.

1. Compute
P(N) andP(N |A). (Enter your answers as fractions.)