Use the data in the following table, which lists drivethru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table.
Drivethru Restaurant 


A 
B 
C 
D 

Order Accurate 
328328 
274274 
235235 
144144 
Order Not Accurate 
3535 
5656 
3434 
1515 
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?
The probability of getting two orders from Restaurant D is
nothing.
The events
▼
are not
are
independent because choosing the first order
▼
does not affect
affects
the choice of the second order.
(Round to four decimal places as needed.)
b. Assume that the selections are made without replacement. Are the events independent?
The probability of getting two orders from Restaurant D is
nothing.
The events
▼
are not
are
independent because choosing the first order
▼
affects
does not affect
the choice of the second order.
(Round to four decimal places as needed.)
total number of orders=996121
total number of orders from restaurant D=145659
a. Assume that the selections are made with replacement.
The probability of getting two orders from Restaurant D is
independent because choosing the first order does not affect the choice of the second order.
a. Assume that the selections are made without replacement.
The probability of getting two orders from Restaurant D is
dependent because choosing the first order affects the choice of the second order.
the probability that they are both from Restaurant D(with replacement)=
the probability that they are both from Restaurant D(without replacement)=
(the values are same because the population is quite large)
Get Answers For Free
Most questions answered within 1 hours.