Answered: In a sales effectiveness seminar, a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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:

	Sale	No Sale	Row Total
Aggressive	260	320	580
Passive	466	114	580
Column Total	726	434	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.

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

P(N) =

P(N | A) =

2. Are the events N = no sale and A aggressive approach independent? Explain.

a. No. The two events cannot occur together.

b.Yes. The two events can occur together.

c. No. P(N) ≠ P(N | A).

d. Yes. P(N) = P(N | A).

3. Compute P(A or S). (Enter your answer as a fraction.)

P(A or S) =

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