Homework Answers
9. P(Randomly selected food that is not from McDonald's)
= 1 - P(Order is from McDonald's)
= 1 - (329 + 33)/(329 + 264 + 249 + 145 + 33 + 54 + 31 + 13)
= 0.6762 [Rounded off to 4 decimal places]
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popular fast food chains (data from a 2016 QSR Drive-Thru Study).
Assume that orders are randomly selected from those included in the
table.
If one order is selected, what is the probability of the order:
A. Being Accurate?
B. NOT being from Wendy’s?
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D. Are the events of selecting an order from McDonald’s and
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popular fast food chains (data from a 2016 QSR Drive-Thru Study).
Assume that orders are randomly selected from those included in the
table.
If one order is selected, what is the probability of the order:
A. Being Accurate?
B. NOT being from Wendy’s?
C. Being from McDonald’s OR NOT Accurate?
D. Are the events of selecting an order from McDonald’s and
selecting an accurate order mutually exclusive events? Explain your
reasoning....
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