25. Gas Prices One gas station not included in the table below had a listed price of $2.78 for regular gas. the actual price of $2.93 for premium gas? Find the best predicted price of premium gas at this station. Is the result close to Regular 2.77 2.77 2.79 2.81 2.78 2.86 2.75 2.77 Mid-Grade 3.00 2.77 2.89 2.93 2.93 2.96 2.86 2.91 Premium 3.07 3.09 3.00 3.06 3.03 3.06 3.02 3.03
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
![**Gas Prices**
One gas station not included in the table below had a listed price of $2.78 for regular gas. Find the best predicted price of premium gas at this station. Is the result close to the actual price of $2.93 for premium gas?
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---------|--------|--------|--------|--------|--------|--------|--------|
| Regular | 2.77 | 2.77 | 2.79 | 2.81 | 2.78 | 2.86 | 2.75 |
| Mid-Grade | 3.00 | 2.77 | 2.89 | 2.93 | 2.93 | 2.96 | 2.86 |
| Premium | 3.07 | 3.09 | 3.00 | 3.06 | 3.03 | 3.06 | 3.02 |
### Explanation:
The table provides prices for three types of gasoline: regular, mid-grade, and premium, at seven different stations. You need to predict the premium gas price for a station where regular gas is priced at $2.78. By examining the relationship between regular and premium prices in the table, you can estimate if the premium price aligns closely with the actual price of $2.93.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffacfe6a9-3b31-4dae-af81-dc24aa6ad3f4%2F9f051f99-081a-450c-b32c-e7a8d9190264%2Fujw5ulu_processed.jpeg&w=3840&q=75)
![**Regression and Predictions.** Exercises 13–28 use the same data sets as Exercises 13–28 in Section 10-2. In each case, find the regression equation, letting the first variable be the predictor (x) variable. Find the indicated predicted value by following the prediction procedure summarized in Figure 10-5.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffacfe6a9-3b31-4dae-af81-dc24aa6ad3f4%2F9f051f99-081a-450c-b32c-e7a8d9190264%2Fzbjg3t_processed.jpeg&w=3840&q=75)
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