Distribution

chanda

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Joined
Apr 15, 2010
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As reported by the FBI, the age distribution of murder victims between 20 and 59 years old is shown below.
Age Frequency
20-24 2815
25-29 2072
30-34 1612
35-39 1351
40-44 1157
45-49 869
50-54 579
55-59 365

A murder case in which the victim was between 20 and 59 old is selected at random. Let event A=the victim was between 25-39 years old
B=the victim was 45 or older C=the victim was under 35 or over 50.

a) Are A and B mutually exclusive?

b) Are A and C mutually exclusive?

c) Find P(A), the probability of event A.

d) Find P (not B), the probability of (not B)

e) Find P(B&C), the probability that the victim was in both B and C.
 
chanda said:
As reported by the FBI, the age distribution of murder victims between 20 and 59 years old is shown below.
Age Frequency
20-24 2815
25-29 2072
30-34 1612
35-39 1351
40-44 1157
45-49 869
50-54 579
55-59 365

A murder case in which the victim was between 20 and 59 old is selected at random. Let event A=the victim was between 25-39 years old
B=the victim was 45 or older C=the victim was under 35 or over 50.

a) Are A and B mutually exclusive?

b) Are A and C mutually exclusive?

c) Find P(A), the probability of event A.

d) Find P (not B), the probability of (not B)

e) Find P(B&C), the probability that the victim was in both B and C.

Please show us your work, indicating exactly where you are stuck - so that we may know where to begin to help you.
 
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