Question

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

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

The following table gives the gender and political
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