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Probability Problem for Job Satisfaction

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Please show work so I can learn how to do this.

(See attached file for full problem description)

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I need help with the following. Please show work so I can learn how to do this.

A study of job satisfaction was performed for 4 occupations: doctor, chemist, CPA, &
dentist. Job satisfaction was measured on a scale of 0-100. Data gathered is listed below.

Satisfaction Score
Occupation Under 50 50-59 60-69 70-79 80-89
doctor 0 2 4 3 1
chemist 6 2 1 1 0
CPA 0 5 2 1 2
dentist 2 1 4 3 0

a. Develop a joint probability table
b. What is the probability 1 of the participants studied had a score in the 80's?
c. What is the probability of a score in the 80's given the study participant was CPA?
d. What is the probability 1 of the participants was a chemist?
e. What is the probability 1 of the participants was a chemist & received a score under 50?
f. What is the probability of a score under 50 given a person is a chemist?
g. What is the probability of a score of 70 or higher?
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Solution Summary

The solution includes a word document that explains the steps of calculating probabilities, while the excel sheet shows calculations

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Hello!

Please find the solutions attached. I have also included a word file that explains to you how to calculate the probabilities. In the excel file, i used cell references so that you can follow through.

Probability (Event A) = = P(A) = Number of Outcomes Favorable to Event A
Number of Outcomes in the Sample Space

For question b, for example, the number ...

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Manal Elkhoshkhany, MBA
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  • MBA, California State University, Sacramento
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