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**

317317

275275

237237

139139

**Order Not Accurate**

3737

5555

4040

1313

If one order is​ selected, find the probability of getting an order that is not accurate.

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Part 1

The probability of getting an order that is not accurate is

enter your response here.

To find the probability of getting an order that is not accurate, we need to calculate the ratio of the total number of "not accurate" orders to the total number of orders.

### Step 1: Sum the "not accurate" orders
The "not accurate" orders for each restaurant are:

- Restaurant A: 37
- Restaurant B: 55
- Restaurant C: 40
- Restaurant D: 13

Total "not accurate" orders = \( 37 + 55 + 40 + 13 = 145 \)

### Step 2: Sum the total number of orders
The total number of orders (both accurate and not accurate) for each restaurant is:

- Restaurant A: \( 317 + 37 = 354 \)
- Restaurant B: \( 275 + 55 = 330 \)
- Restaurant C: \( 237 + 40 = 277 \)
- Restaurant D: \( 139 + 13 = 152 \)

Total number of orders = \( 354 + 330 + 277 + 152 = 1113 \)

### Step 3: Calculate the probability
The probability of selecting a "not accurate" order is the ratio of "not accurate" orders to the total number of orders:

\[
P(\text{not accurate}) = \frac{145}{1113}
\]

Now, let's simplify this fraction.

\[
P(\text{not accurate}) \approx 0.1303
\]

So, the probability of getting an order that is not accurate is approximately 0.1303, or 13.03%.

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Would you like more details on the steps? Here are five related questions to expand on this concept:

1. What is the probability of getting an accurate order instead?
2. If two orders are selected at random, what is the probability that both are accurate?
3. How would the probability change if Restaurant D increased its accurate orders?
4. What is the combined probability of getting a not accurate order from Restaurants A or B?
5. How does the accuracy rate vary across restaurants?

**Tip:** Probability is always a number between 0 and 1, where 0 means impossible and 1 means certain.

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 317 275 237 139 Order Not Accurate 37 55 40 13 If one order is selected, find the probability of getting an order that is not accurate.

Find the probability of selecting a not accurate order from a drive-thru based on real data from popular fast food chains. This problem explores basic probability concepts, using the formula P(event) = Number of favorable outcomes / Total number of outcomes. Suitable for students in Grades 6-8.

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