1)Use the frequency distribution to the right, which shows the
1)Use the frequency distribution to the right, which shows the number of voters (in millions)
according to age, to find the probability that a voter chosen at random is in the given age range. Not between 18 to 20yrs old
Ages of voters
FrequencyFrequency
18 to 20 6.8
21 to 24 8.2
25 to 34 24.3
35 to 44 23.2
45 to 64 51.7
65 and over 29.1
2)Determine whether the following statement is true or false. If it is false, rewrite it as a true statement.
If two events are independent, P(A|B)=P(B).
A. False; if events A and B are independent, then P(B|A)=P(A).
B.False; if events A and B are independent, then P(A and B)=P(A)•P(B).
C.False; if events A and B are independent, then P(A and B)=0.
D.True
3)The table below shows the number of male and female students enrolled in nursing at a particular university for a recent semester.
(a) Find the probability that a randomly selected student is male, given that the student is a nursing major.
(b) Find the probability that a randomly selected student is a nursing major, given that the student is male.
Nursing Majors Non nursing majors total
Males 95 1120 1215
Females 732 1646 2378
Total 827 2766 3593
Find the probality is _
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