{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ma330f06final

# ma330f06final - MA330 Fall 2006 Final Exam 14 December 2006...

This preview shows pages 1–4. Sign up to view the full content.

MA330 Fall 2006 Final Exam 14 December 2006 Name: ID No:

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2 1. You randomly select some widgets for weighing. You collect the following values for mass (kg): { 32 , 41 , 45 , 38 , 43 } . The sample mean is: . The sample standard deviation is: .
3 2. The city maintenance department is responsible for road repair. Winter pothole formation is their biggest enenmy. Data indicates that over the course of one winter, potholes (of sufficient size to warrant repair) occur at an average rate of 4 potholes per mile of roadway. (a) If the road from town center to the hospital is 1 / 2 mile, what is the expected number of potholes that will form on this road in one winter? (b) If an ambulance hits a pothole while carrying a patient to the hospital, there may be negative health effects. Lawyers at the city planning office are concerned that in such a situation, the city might be held liable if there are “too many” potholes. They decite that 5 potholes on that road from town center to the hospital would constitute TOO MANY. What probability distribution should you use in to calculate probabilities concerning the number of potholes?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}