An insurance company classifies drivers as low-risk if they are accident-free for one year. Past records indicate that 98 % of the drivers in the low-risk category L one year will remain in that category the next year, and 78 % of the drivers who are not in the low-risk category L ' one year will be in the low-risk category the next year. (A) Draw a transition diagram. (B) Find the transition matrix P . (C) If 90 % of the drivers in the community are in the low-risk category this year, what is the probability that a driver chosen at random from the community will be in the low-risk category next year? Year after next?
An insurance company classifies drivers as low-risk if they are accident-free for one year. Past records indicate that 98 % of the drivers in the low-risk category L one year will remain in that category the next year, and 78 % of the drivers who are not in the low-risk category L ' one year will be in the low-risk category the next year. (A) Draw a transition diagram. (B) Find the transition matrix P . (C) If 90 % of the drivers in the community are in the low-risk category this year, what is the probability that a driver chosen at random from the community will be in the low-risk category next year? Year after next?
Solution Summary: The author explains the transition diagram when an insurance company classifies drivers as: 98% of the drivers are at low risk if they are accident free for one year.
An insurance company classifies drivers as low-risk if they are accident-free for one year. Past records indicate that
98
%
of the drivers in the low-risk category
L
one year will remain in that category the next year, and
78
%
of the drivers who are not in the low-risk category
L
'
one year will be in the low-risk category the next year.
(A) Draw a transition diagram.
(B) Find the transition matrix
P
.
(C) If
90
%
of the drivers in the community are in the low-risk category this year, what is the probability that a driver chosen at random from the community will be in the low-risk category next year? Year after next?
(x^2+y^2)dx+(x^2-xy)dy=0 , Determine if the equation is homogeneous.
42. Consider the following joint probability table.
B₁
B2
B3
B4
A
0.09
0.22
0.15
0.20
A
0.03
0.10
0.09
0.12
EXERCISES 4.3
Mechanics
41. Consider the following contingency table.
B
B
A
26
34
Ac
14
26
a. Convert the contingency table into a joint probability table.
b. What is the probability that A occurs?
ن فة
What is the probability that A and B occur?
d. Given that B has occurred, what is the probability that
A occurs?
e. Given that A has occurred, what is the probability that
B occurs?
f.
Are A and B mutually exclusive events? Explain.
g.
Are A and B independent events? Explain.
42. Consider the following joint probability table.
B₁
B2
B3
BA
A
0.09
0.22
0.15
0.20
Ac
0.03
0.10
0.09
0.12
Chapter 9 Solutions
Pearson eText for Finite Mathematics for Business, Economics, Life Sciences, and Social Sciences -- Instant Access (Pearson+)
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