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Use the data in the following? table, which lists? drive-thru order accuracy at popular fast food chains

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Use the data in the following? table, which lists? drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table.

?Drive-thru Restaurant   

A

B

C

D

Order Accurate

331

 

331

268

 

268

246

 

246

120

 

120

Order Not Accurate

31

 

31

54

 

54

35

 

35

18

 

18

If one order is? selected, find the probability of getting an order that is not accurate or is from Restaurant C. Are the events of selecting an order that is not accurate and selecting an order from Restaurant C disjoint? events?