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Use the data in the following table which lists drive-thru order accuracy at popular fast iood chains ssume tnat orders are andoml; selected Trom tnose included in ...

Question

Use the data in the following table which lists drive-thru order accuracy at popular fast iood chains ssume tnat orders are andoml; selected Trom tnose included in tne table.Drive-thru RestaurantOrdler Accurate Ordler Not AccurateIf three different orders are selected find the probability that they are all from restaurant D_The probability is Round t0 four decimal places as needed.

Use the data in the following table which lists drive-thru order accuracy at popular fast iood chains ssume tnat orders are andoml; selected Trom tnose included in tne table. Drive-thru Restaurant Ordler Accurate Ordler Not Accurate If three different orders are selected find the probability that they are all from restaurant D_ The probability is Round t0 four decimal places as needed.



Answers

In Exercises $9-20,$ use the data in the following table, which lists drive-thru order accuracy at popular fast food chains (data from a QSR Drive-Thru Study). Assume that orders are randomly selected from those included in the table. (TABLE CANNOT COPY) Fast Food Drive-Thru Accuracy If three different orders are selected, find the probability an order from Burger King or Taco Bell or an order that is accurate.

Thanks. If three different orders are selected, find the probability that they are all not accurate. If three different orders are selected, they're all not accurate. What is the total number? Fighter orders that are not accurate. 33 was 54 plus 31 plus 13. This turns out to be 1. 31. Right. 40 91 21 23 1. 27. When? When there was anyone? Yes. This is 1 31 development. Total number of orders. This is the probability that my first order is not accurate. Now I'm choosing the second order now. I am left with 130 options and total number of orders that are remaining is 1117 The third time this is going to be 1 29 upon 1116 And what is the solution that I get in this case? It is just a multiplication of these. And this multiplication turns out to be. This multiplication turns out to be 0.15 This turns out to be 0.0 01 Faith, don't try to remember all the formulas. Just try to use common sense like I have done away here. There is a very big formula with you know, students many times learn like the like. What is the formula? The formula is P off A and B is equal toe p off a in the pee off be given a or which is again equal to p off be into P off a given Lee. No need to learn all of these things. Just apply simple common sense and you will reach your answer.

Let's look at this question. If one order is selected, find the probability of getting an order from McDonald's or Wendy's or in order that is not accurate. It is either McDonald's that is this or Wendy's that is this or it is not accurate. This the addition of these quantities going to be in my numerator. 3 29 plus 33 plus 54 plus 2 49 plus 13 plus 31 709 so that probably that I'm looking for a 709 upon 111 it. Is there anything else? No. You just have to find the probability on this. Probability. Turns out to be 0.63410 point 6341 This is my answer.

Now, let's look at the second question. And this That is 1/10 1. If one order is selected, what is the probability of getting an order? That is not accurate? Which means this second room, the addition of the second row upon total number for us, it is going to be 33 plus 54 plus 31 plus 13. That is 1 31. This is 1 31 divided by +118 So and what does this turn out to be? This one is 0.117 to this turns out to be zero point 1172 This is what I want.

Question. We're gonna find the probability. If three different orders are selected, find the probability that they are all from Wendy's. Now let's try to look at Wendy's. The total number of orders from Wendy's are 2 49 plus 31 which is 2 80. So to 80 upon 1118 Now, if three of them are selective, I want them to be from Wendy's. So this is to 79. Let's do this without replacement, for example. So this is 1117 and this is to 78 upon 1117 She let me just do this on a calculator. Yes, so using the calculator, this value turns out to be 0.1558 This is turning out to be 0.155 Eat. Why are these decreasing? When I had that when I was choosing the first order, total number of orders in my favor were to 80. And what was the total sample space? It was 1118 Then I will reach chose. I will re choosing one order. So how many are left in 79? I left, and if I choose once again to 70 it will be left. And similarly this thing, this thing, this thing this thing should be 1116 This is 1116 Similarly, after choosing the first order, how many total orders are left? 1117 Then again, after choosing to orders how many total orders are left? 1116 This is how I get this answer.


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