f (1) ME X Bb Take 1 X G The n X G Which X The n X G When X G Consi X G Doug X * Home X AOX T Trans X S MCQ X + X -) C interact2.csu.edu.au/webapps/assessment/take/take.jsp?course_assessment_id=_107568_1&course_id=_58264_1&content_id=_4725210_1&question... Paused Apps Bookmarks SuccessFactors Other bookmarks Reading list Topic 6: Cost-Volume-Profit Remaining Time: 3 hours, 16 minutes, 51 seconds. Topic 7: Inventory control Topic &: Linear Programming * QUESTION COMPLETION STATUS: Topic 9: Simulation Topic 10: Correlation and 105 26 30 4 5 6 7 8 9 10 11 12 13 14 151 160 176 185 19 20 21 22 23 24 Regression Topic 11 - Statistical decision making and quality Moving to another question will save this response. control > Resources Question 23 15 polnts SAVE ANSWER Additional CSU Support Consider the following table regarding the number of purchases at a service station last year. CSU Replay (Panopto) Number of Purchases last year CSU Library Payment Method B,:0-9 5: 10-19 B: 20 or more Total Useful Links A: Cash 250 25 0 275 4: Oil Company Card 25 195 70 350 Learning Opportunities A: Credit Card 110 110 5 225 For academics Total 445 330 75 850 Required: a. What is the probability that customers made between 0 and 9 purchases last year? (1 mark) b. What is the probability that customers made between 0 and 9 purchases last year 20 or more? (1 mark) c. What is the probability that customers paid by credit card? (1 marks) d. What is the probability that a customer selected at random paid by credit card, given that (s)he made between 10 and 19 purchases last year? (2 marks) e. What is the probability that a customer selected at random used an oil company card and made between 0 and 9 purchases last year? (2 marks) f. What is the probability that a customer selected at random either paid by credit card or made between 10 and 19 purchases? (2 marks) g. Are the payment method and number of purchases statistically independent? (2 marks) h. What are the likely implications for a business that uses probability data, if some of the underlying assumptions do not match reality? Provide an example to illustrate you answer. (4 marks) In the answer box below, write the letter and your answer. e.g. a. Your answer For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). IUS Peregraph Av LY X2 - t ... e hp Ce W ENG 2:23 PM 10/28/2021