Question

please show all work in details

Also answer; What is the experiment for this problem?

30. Survey: Customer Loyalty Are customers more loyal in the east or in the west? The following table is based on information from Trends in the United States, published by the Food Marketing Institute, Washington, D.C. The columns represent length of customer loyalty (in years) at a primary super- market. The rows represent regions of the United States. d. May not be copied, scanned, or duplicated, in whole or in part. Due to clectronic rights, some third party content may be suppressed from the eBook and/or Chapters) mes not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. ELEMENTARY PROBABILITY THEORY Less Than 1 Year East 32 Midwest 31 South 53 West 1 41 Column Total 157 1-2 3-4 5-9 Years Years Years 54 59 112 68 68 120 92 93 158 56 67 78 270 287 468 10-14 15 or More Years Years 77 118 63 173 106 158 45 86 291 Row Total 452 523 660 373 2008 535 What is the probability that a customer chosen at random (a) has been loyal 10 to 14 years? (b) has been loyal 10 to 14 years, given that he or she is from the east? (c) has been loyal at least 10 years? (d) has been loyal at least 10 years, given that he or she is from the west?

Answer 1

DATE: ) PAGE NOT PAGE NO: all Loyal to to 14 years.) = 2 91 2008 Pl Loyal to tell years. He like is from last] . . .. . : E 77 .452 .) P[ Loyal at least to years ] гр о - у везу 105 1 5.2 »» у план. = 29) + 535 2008 2008 826 2008 la Pl Loyal at least lo years / Hel she is from west) = 45 + 86 = 131 373 223 373 Please LIKE and comment, if you want to asle something more Thanks &