Four students must work together on a group project. They decide that each will take responsibility for

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Four students must work together on a group project. They decide that each will take responsibility for a particular part of the project, as follows:

Person Maria Alex Juan Jacob Task Survey design Data collection Analysis Report writing Because of the way the tasks have been divided, one student must finish before the next student can begin work. To ensure that the project is completed on time, a timeline is established, with a deadline for each team member. If any one of the team members is late, the timely completion of the project is jeopardized. Assume the following probabilities: 1.

The probability that Maria completes her part on time is .8. 2.

If Maria completes her part on time, the probability that Alex completes on time is .9, but if Maria is late, the probability that Alex completes on time is only .6. 3.

If Alex completes his part on time, the probability that Juan completes on time is .8, but if Alex is late, the probability that Juan completes on time is only .5. 4.

If Juan completes his part on time, the probability that Jacob completes on time is .9, but if Juan is late, the probability that Jacob completes on time is only .7.

Use simulation (with at least 20 trials) to estimate the probability that the project is completed on time. Think carefully about this one. For example, you might use a random digit to represent each part of the project (four in all). For the first digit (Maria’s part), 1– 8 could represent on time, and 9 and 0 could represent late. Depending on what happened with Maria (late or on time), you would then look at the digit representing Alex’s part. If Maria was on time, 1– 9 would represent on time for Alex, but if Maria was late, only 1– 6 would represent on time. The parts for Juan and Jacob could be handled similarly.

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