rome File Edit View History Bookmarks People Window Help 4.2 Hmwk . Some Probabi

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rome File Edit View History Bookmarks People Window Help 4.2 Hmwk . Some Probability e www ebassign.net/web/Student/Assignment-Responses/subr indep-17985085 secure https:// O0.23/1 points | Previous Answers BBUnderStat12 4.2.032 g table is based on information from a recent study. The columns rep Are customers more loyal in the East or in the West? The followin at a primary supermarket. The rows represent regions of the United States 3-4 Years 5-9Years10-14 Years- 15 orMore Years 1-2 Years 38 Less Than 1 Year 32 31 53 41 157 59 68 93 67 112 120 158 78 468 143 168 162 90 563 East Midwest 93 78 63 106 45 West What is the probability that a customer chosen at random has the following characteristics? (Enter your answers as fractions.) (a) has been loyal 10 to 14 years 291/2030 (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 Enter fraction, integer, or exact (d) has been loyal at least 10 years, given that he or she is from the West decimal. Do not approodmate (e) is from the West, given that he or she has been loyal less than 1 year () is from the South, given that he or she has been loyal less than 1 year

Explanation / Answer

a) P(has been loyal 10 to 14 years) = 291/2030

b) P(has been loyal 10 to 14 years | East) = 77/291

c) P(has been loyal at least 10 years) = (291+563)/2030 = 854/2030

d) P(loyal at least 10 years | West) = (45+90)/399 = 135/399

e) P(West | loyal less than 1 year) = 41/157

f) P(South| loyal less than 1 year) = 53/157

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