Question

The data below represents the gender and political affiliation of 100 randomly selected voters at a...

The data below represents the gender and political affiliation of 100 randomly selected voters at a voting site. Suppose you select a voter at random from this sample. Answer the following questions.

Women Men
Republicans 22 28
Democrats 23 14
Independents 5 8

1. What is the probability that you select a man? Use cell references to find your answers.

a.Number of Men

b.Total Number of Voters

c.Probability of Selecting a Man

2. What is the probability of selecting a Democrat? Use cell references to find your answers.

a. Number of Democrats

b.Total Number of Voters

c.Probability of Selecting a Democrat

3. What is the probability that you do not select an Independent? Use cell references to find your answers.

a.Number of Independents

b.Number of Voters

c.Probability of Selecting an Independent

d.Probability of NOT Selecting an Independent

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

Following table shows the row total and column total:

Women Men Total
Republicans 22 28 50
Democrats 23 14 37
Independents 5 8 13
Total 50 50 100

1(a)

Number of Men: 50

(b)

Total Number of Voters: 100

(c)

Probability of Selecting a Man: 50 /100 = 0.50

------------------

2(a)

Number of Democrats: 37

(b)

Total Number of Voters: 100

(c)

Probability of Selecting a Democrat: 37 / 100 = 0.37

-----------------

3(a)

Number of Independents: 13

(b)

Number of Voters: 100

(c)

Probability of Selecting an Independent: 13 /100 = 0.13

(d)

Probability of NOT Selecting an Independent= 1 - Probability of Selecting an Independent = 1 - 0.13 = 0.87

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