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Question

Nonulnr tasirood cans hesum Inal ordersrnjomly se 2ctad from Ihose ircluded inUse Ihe date In thc tollarng tablc wnlch lists Crite-Innu ordat Accuracy the tablo. Driva-thru RestaurantOrder Accurate Order KolaccuraroIf Ihree @ tterert orders36 #cled, Iind thc probability Lnat thoyHom reetaltuteprobabilt; (Roua tur decima pincorneuded |

nonulnr tasirood cans hesum Inal orders rnjomly se 2ctad from Ihose ircluded in Use Ihe date In thc tollarng tablc wnlch lists Crite-Innu ordat Accuracy the tablo. Driva-thru Restaurant Order Accurate Order Kolaccuraro If Ihree @ tterert orders 36 #cled, Iind thc probability Lnat thoy Hom reetaltute probabilt; (Roua tur decima pincor neuded |



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.

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.

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.

You want to find the probability that on order is not from McDonald's? So what is the total? Number four is that we have 1118 These are the orders that are not from McDonald's. So these will be the numerator and the total will be in the denominator. So what is going to be the numerator? What is the addition off total orders from Wendy's, Taco Bell and Burger King, it is going to be 756. So this is 756 divided by 1118 And this turns out to be okay 0.6760 point 676 This is what I want.


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