Question

In: Statistics and Probability

Three professors at a university did an experiment to determine if economists are more selfish than...

Three professors at a university did an experiment to determine if economists are more selfish than other people. They dropped 64 stamped, addressed envelopes with $10 cash in different classrooms on the campus. 45% were returned overall. From the economics classes 57% of the envelopes were returned. From the business, psychology, and history classes 32% were returned.

• R = money returned
• E = economics classes
• O = other classes

  • Part (a) Write a probability statement for the overall percent of money returned.

    P ()=
      

  • Part (b)Write a probability statement for the percent of money returned out of the economics classes.

    P ()=

  • Part (c) Write a probability statement for the percent of money returned out of the other classes.

    P ()=

  • Part (d) Is money being returned independent of the class? Explain.

  • Part (e) Based upon this experiment, do you think that economists are more selfish than other people? Explain.

.

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Expert Solution

orchestra answered 2 years ago
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