ECSE-2500, Engineering Probability, Spring 2010, Rensselaer Polytechnic Institute
Homework 1, due 2pm Tues Feb 2
- (6 pts) One of the hardest problems is forming an appropriate probability model.
E.g., suppose you want to design an error correcting program for your data on a hard
drive. What sort of errors are likely? Here are some possibilities:
- Separate bits independently go bad (because of a bad spot on the platter)
- Whole blocks go bad (perhaps because a lower level error correction protocol can completely correct a block until there are so many errors that it suddenly totally fails, or because of a directory error).
- A whole hard drive goes bad at once (because you dropped it while it was spinning and caused a head crash).
- other failure modes
- likelihood of failure
- cost of failure
- future trends
- (2) One hard problem with statistics is how they should be interpreted. Read this
story: 'Avatar' replaces 'Titanic' in record books.
- Tell me why Avatar is financially the biggest movie ever.
- Now tell me why Avatar is NOT (yet?) financially the biggest movie ever.
- (6) Do the text exercise 1.5 on page 19.
- (6) Do the text exercise 1.10 on page 20.