Find P(DW). In Grocerytown there are seven supermarkets. Past research has shown that out of 100 typical customers shopping in person at noon on Monday: 5 are shopping at store 1 O 20 at store 2 ○ 5 at store 3 ○ 25 at store 4 15 at store 5 10 at store 6 О 20 at store 7 • Stores 1, 4 and 6 are Safeway stores. ● Stores 2, 3, 5 and 7 are Whole Foods stores. • Stores 2, 4 and 7 are located downtown. • • • • Assume that one customer is chosen at random and that a customer only shops at one store. (We are talking about physical shopping at the store at a particular point in time, so a customer can only shop at one store. Outcome E; refers to the random customer shopping at store i. Event S means that the customer shops at a Safeway store. Event W means that the customer shops at a Whole Foods store. • Event D means that the customer shops at a store located downtown.
Find P(DW). In Grocerytown there are seven supermarkets. Past research has shown that out of 100 typical customers shopping in person at noon on Monday: 5 are shopping at store 1 O 20 at store 2 ○ 5 at store 3 ○ 25 at store 4 15 at store 5 10 at store 6 О 20 at store 7 • Stores 1, 4 and 6 are Safeway stores. ● Stores 2, 3, 5 and 7 are Whole Foods stores. • Stores 2, 4 and 7 are located downtown. • • • • Assume that one customer is chosen at random and that a customer only shops at one store. (We are talking about physical shopping at the store at a particular point in time, so a customer can only shop at one store. Outcome E; refers to the random customer shopping at store i. Event S means that the customer shops at a Safeway store. Event W means that the customer shops at a Whole Foods store. • Event D means that the customer shops at a store located downtown.
Chapter7: Uncertainty
Section: Chapter Questions
Problem 7.7P
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Transcribed Image Text:Find P(DW).
Transcribed Image Text:In Grocerytown there are seven supermarkets.
Past research has shown that out of 100 typical customers shopping in person at noon on
Monday:
5 are shopping at store 1
O
20 at store 2
○
5 at store 3
○
25 at store 4
15 at store 5
10 at store 6
О
20 at store 7
•
Stores 1, 4 and 6 are Safeway stores.
●
Stores 2, 3, 5 and 7 are Whole Foods stores.
•
Stores 2, 4 and 7 are located downtown.
•
•
•
•
Assume that one customer is chosen at random and that a customer only shops at one
store. (We are talking about physical shopping at the store at a particular point in time, so
a customer can only shop at one store.
Outcome E; refers to the random customer shopping at store i.
Event S means that the customer shops at a Safeway store.
Event W means that the customer shops at a Whole Foods store.
• Event D means that the customer shops at a store located downtown.
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