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MATH221ON-Use the frequency distribution to the right

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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