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

Question

3. 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 Order Accurate Order Not Accurate39 323 261 57 236 130 37 15 If one order is selected, find the probability of getting food that is not from Restaurant A The probability of getting food that is not from Restaurant A is Round to three decimal places as needed.) D:4.2.9 169 4. One common system for computing a grade point average (GPA) assigns 4 points to an A, 3 points to a B, 2 points to a C 1 point to a D, and 0 points to an F. What is the GPA of a student who gets an A in a 3-credit course, a B in each of three 4-cr courses, a C in a 3-credit course, and a D in a 4-credit course? The mean grade point score is (Round to the nearest tenth as needed.) ID: 3.1.33 of 14 10/23/17 11:47 P

Explanation / Answer

3

total orders from restaurant A are

323 +39 = 362

Total number of orders from all the restaurants are

323+39+261+57+236+37+130+15 = 1098

Proababilty of getting food from Rest A = 362/1098 = 0.329

Proababilty of NOT getting food from Rest A = 1 - 0.329 = 0.671

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