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

Question

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

324324

280280

241241

120120

Order Not Accurate

3535

5252

4040

1212

If one order is? selected, find the probability of getting an order from restaurant

Upper AA

or

Upper DD

or an order that is not accurate.

The probability of getting an order from restaurant

Upper AA

or

Upper DD

or an order that is not accurate is

?Drive-thru Restaurant   

A

B

C

D

Order Accurate

324324

280280

241241

120120

Order Not Accurate

3535

5252

4040

1212

Explanation / Answer

from above"

probability of getting an order from restaurant A or D or order not accurate =(359+132+52+40)/1104= 0.5281

A B C D total accurate 324 280 241 120 965 not accurate 35 52 40 12 139 total 359 332 281 132 1104

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