STAT 400 Midterm: STAT400 BOYLE-M FALL2003 0101 MID EXAM

• School: University of Maryland
• Department: Statistics and Probability
• Course: STAT 400
• Professor: All

Document Summary

No books, no notes, no calculators, no cell phones or electronic devices. Put a box around the nal answer to a question. Do not complete complicated arithmetic computations (save time! ); just set them up clearly: (15 points) suppose that a and b are events such that p (a) = . 4 and p (b) = . 3 and p (a b) = . 5. Let m be the maximum value of the two tosses. De ne x by the following rule: x = 3 if m 3, and. Of the students who do not ingest substance. If e(x) = 3, then on most repetitions of the experiment, we expect the measurement will equal 3: (15 points) ten percent of the cd players a store sells are submitted for service while under warranty. Of those submitted, the store xes 75% and replaces 25%.