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

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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Number 25
**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.
Transcribed Image Text:**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.
**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.
Transcribed Image Text:**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.
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