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yen bui -Google Chrome https:/ Math 159-Intro to stats Morning class fall 2018 H

ID: 3071319 • Letter: Y

Question

yen bui -Google Chrome https:/ Math 159-Intro to stats Morning class fall 2018 Homework: Section 4.2 Homework Score: 0 of 1 pt 4.2.13 Use the data in thefollowing table, which Ists drive-thru arderccucyat populrfat fod chains Assumethat orders are ework.aspx?homeworkld 4938706608questionld-1&flushed-false&cld-51219498centerwin yes yen bui & 1 9/18/18 2:21 AM Save 5 of 7 (4 complete)Y HW Score: 35.71%, 25 of 7 pts Question Hep the table Assume that orders are randomly selected from those includedin Drive-thru RestaurantD Order Accurate 32 27 7 237 120 Not Accurate 32131-40 If two orders are selected, find the probability that they are both from Restaurant D a. Assume that the selections are made with replacement Are the events independent? b. Assume that the selections are made without replacement. Are the events independent? a. Assume that the selections are made with replacement. Are the events independent? indespendent because choosing the fest arder the choice af he The probability of getting two orders from Restaurant D isThe events second order (Round to four decimal places as needed) Enter your answer in the answer box and then click Check Answer remaining

Explanation / Answer

P(both orders are from Restaurant D) = [(120+17)/(327+277+237+120+32+58+40+17)]2

= (137/1108)2

= 0.0153

The events are independent becase chosing the first order has no impact on/does not affect the choice of the second order

b) P(both orders are from Restaurant D) = 137/1108 x (137-1)/(1108-1)

= 0.0152

The events are not independent becase chosing the first order has impact on/does affect the choice of the second order