STAT100 Final: Final Exam Fall 2013
Document Summary
Instructions: all work and answers are to be placed in this booklet. Joe"s nut bar sells snacks to o ce workers. A random selection of nut bar products had the following prices: 7. 25, 7. 50, 7. 50, 7. 50, 8. 25, 11. 00, 12. 50, 13. 00, 15. 25 (a) is the variable discrete or continuous? (circle your answer at right. ) discrete/continuous (b) determine the mode. Answer: (e) determine the rst and third quartiles. Circle your answer at right yes/no and show the relevant calculation used to determine your result below. A statistics instructor tracks the calls and texts that he receives on his cell phone over a month. Using this data, for a randomly selected message . (a) what is the probability that it came from a. Answer: family member? (b) what is the probability it is a phone call that is a. Answer: wrong number? (c) what is the probability that it is a text message.
