Question: Ethan has a midterm in his statistics class, which starts 10 minutes after the scheduled end of his biology class. The biology teacher rarely ends

Ethan has a midterm in his statistics class, which starts 10 minutes after the scheduled end of his biology class. The biology teacher rarely ends class on time though, and the amount of time he is overtime is approximately normally distributed, with a mean of 2 minutes and a standard deviation of 1/2 minute. The time it takes Ethan to get from one class to another is also normal, with a mean of 6 minutes and a standard deviation of 1 minute.

a. Is it reasonable to assume that the two times are independent? Explain.

b. Assuming that the two times are independent, what is the probability that Ethan will be late for his exam?

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Business Statistics Questions!

Williams Company is a merchandiser and its accounting department has finished preparing a flexible budget to better understand the differences between its actual results and the master budget. The...

s ask for just cause 1. How long has the employee has been working for the company 2. Disciplinary record 3. Notice of expectations 4. Disparate treatment 5. Adequate investigation 6. Progressive...

These are what my teacher expects for a strategic analysis essay: "Strategic Case Analyses - Case studies provide important windows into the real problems that firms are trying to solve. Note, since...

Journal of Case Studies in Education Elementary teachers' experiences and perceptions of departmentalized instruction: A case study Alecia Strohl Valdosta State University Lorraine Schmertzing...

23 Nickel and Dimed: On (Not) Getting By in America BARBARA EHRENREICH Major changes in welfare legislation in 1996 eliminated cash payments to millions of America's poor, requiring them to find...

Topic: Conducting personal job interviews using the star model 1-Design a two-hour training work plan for 10 trainees 2-Determine the quality of trainees 3-Use the training design model Formulate one...

I hope you can answer this question and find the reference below the question. Thank you Topic: Conducting personal job interviews using the STAR model 1- Design a two-hour training work plan for 10...

COMM 215: BUSINESS STATISTICS REVIEW PROBLEMS 1 Descriptive Statistics 1. The listing below gives the service window of A&W: 4.91 0.85 0.52 2.51 1.92 2.66 1.94 5.19 2.33 3.51 2.95 2.62 service times...

\ can you help me with this? Directions: 1) Show all work in order to receive partial credit. 2) Use any technique you wish to answer the questions on this exam unless mm in the question. Remember to...

Navin's Sailing Shop has two independent projects under consideration. The cash flows are given below. Navin's cost of capital is 14%, and they use a 4-year payback standard period. The initial...

The following adjusted account information, in alphabetical order, was taken from the work sheet of John's Electronics for the month ended April 30, 2014. A physical count on April 30, 2014, revealed...

5 . Select only one of the five options below. Thabo owns a motor car. The life cycle cost includes: ( 2 ) A . The cost of putting petrol into the car from time to time. B . The purchasing price of...

It is said that only cash costs are relevant for capital budgeting decision. However, depreciation which is a non-cash cost is a prominent part of cash flow analysis for such an investment decision....