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: look at screenshot 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(N) and P(N | A). (Enter your answers as fractions.) (b) Are the events N = no sale and A aggressive approach independent? Choose one of the following options: Yes. The two events can occur together. Yes. P(N) = P(N | A).     No. P(N) ≠ P(N | A). No. The two events cannot occur together.   (c). Compute P(A or S). (Enter your answer as a fraction.)

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Author:Amos Gilat
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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:

look at screenshot

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(N) and P(N | A). (Enter your answers as fractions.)

(b) Are the events N = no sale and A aggressive approach independent? Choose one of the following options:

Yes. The two events can occur together.
Yes. P(N) = P(N | A).    
No. P(N) ≠ P(N | A).
No. The two events cannot occur together.
 
(c). Compute P(A or S). (Enter your answer as a fraction.)
Sale
No Sale
Row Total
Aggressive
Passive
Column Total
276
304
580
475
105
580
751
409
1160
Transcribed Image Text:Sale No Sale Row Total Aggressive Passive Column Total 276 304 580 475 105 580 751 409 1160
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