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The personnel department of Franklin National Life Insurance compiled the accomp

ID: 3434513 • Letter: T

Question

The personnel department of Franklin National Life Insurance compiled the accompanying data regarding the income and education of its employees.

Let A be the event that a randomly chosen employee has a college degree, and let B be the event that the chosen employee's income is more than $60,000.
(a) Find each of the following probabilities. (Round your answers to four decimal places.)

Income
    $60,000 or Below     Income
    Above $60,000     Noncollege Graduate     2030 890 College Graduate 350 730

Explanation / Answer

The personnel department of Franklin National Life Insurance compiled the accompanying data regarding the income and education of its employees.

Income

Income

    $60,000 or Below    

    Above $60,000

Total

Noncollege Graduate    

2030

890

2920

College Graduate

350

730

1080

Total

2380

1620

4000

Let A be the event that a randomly chosen employee has a college degree, and let B be the event that the chosen employee's income is more than $60,000.
(a) Find each of the following probabilities. (Round your answers to four decimal places.)

P(A)

=1080/4000 = 0.2700

P(B)

=1620/4000 = 0.4050

P(A and B)

=730/4000 = 0.1825

P(B | A)

=730/1080 =0.6759

P(B | Ac)

=890/2920 =0.3048

Income

Income

    $60,000 or Below    

    Above $60,000

Total

Noncollege Graduate    

2030

890

2920

College Graduate

350

730

1080

Total

2380

1620

4000

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