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: Sale No Sale Row Total
Aggressive 255 325 580
Passive 472 108 580
Column Total 727 433 1160
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.
A) Compute P(S), P(S | A), and P(S | Pa).
B) Are the events S-sale and Pa-passive approach independent? Explain.
A. Yes. P(S) P(S | Pa).
B. Yes. The two events can occur together.
C. No. The two events cannot occur together.
D. No. P(S)-P(s i Pa).
C) Compute P(A and S) and P(Pa and S).
D) Compute P(N) and P(N/A).
E) Compute P(A or S).