The famous iris dataset (the first sheet of the spreadsheet linked above) was first published in 1936 by Ronald Fisher. The dataset contains 50 samples from 3 iris species: setosa, virginia, and versicolor. Four features are measured, all in cm: sepal length, sepal width, petal length, and petal width. What is the equation for the least square regression line where the independent or predictor variable is sepal length and the dependent or response variable is sepal width for iris versicolor? ý = Ex: 1.234 I+ Ex: 1.234 What is the predicted sepal width for iris versicolor for a flower with a sepal length of 6.33?

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### Educational Content: Understanding Sepal Measurements in Iris Versicolor

#### Sepal Characteristics Data

The table below provides data on sepal measurements for the species **Iris versicolor**. The dataset includes the sepal length and width in centimeters (cm).

| Sepal Length | Sepal Width | Species        |
|--------------|-------------|----------------|
| 7            | 3.2         | Iris-versicolor|
| 6.4          | 3.2         | Iris-versicolor|
| 6.9          | 3.1         | Iris-versicolor|
| 5.5          | 2.3         | Iris-versicolor|
| 6.5          | 2.8         | Iris-versicolor|
| 5.7          | 2.8         | Iris-versicolor|
| 6.3          | 3.3         | Iris-versicolor|
| 4.9          | 2.4         | Iris-versicolor|
| 6.6          | 2.9         | Iris-versicolor|
| 5.2          | 2.7         | Iris-versicolor|
| 5.9          | 3.0         | Iris-versicolor|
| 6.2          | 2.2         | Iris-versicolor|
| 6.1          | 2.9         | Iris-versicolor|
| 5.6          | 3.0         | Iris-versicolor|
| 5.9          | 3.0         | Iris-versicolor|
| 6.7          | 3.1         | Iris-versicolor|
| 5.8          | 2.7         | Iris-versicolor|
| 5.6          | 2.5         | Iris-versicolor|
| 6.3          | 3.4         | Iris-versicolor|
| 5.2          | 2.3         | Iris-versicolor|
| 5.7          | 2.8         | Iris-versicolor|
| 6.6          | 3.0         | Iris-versicolor|
| 5.7          | 2.9         | Iris-versicolor|
| 5.8          | 2.8         | Iris-versicolor|
| 6.1          | 2.9         | Iris-versicolor|
| 6.4
Transcribed Image Text:### Educational Content: Understanding Sepal Measurements in Iris Versicolor #### Sepal Characteristics Data The table below provides data on sepal measurements for the species **Iris versicolor**. The dataset includes the sepal length and width in centimeters (cm). | Sepal Length | Sepal Width | Species | |--------------|-------------|----------------| | 7 | 3.2 | Iris-versicolor| | 6.4 | 3.2 | Iris-versicolor| | 6.9 | 3.1 | Iris-versicolor| | 5.5 | 2.3 | Iris-versicolor| | 6.5 | 2.8 | Iris-versicolor| | 5.7 | 2.8 | Iris-versicolor| | 6.3 | 3.3 | Iris-versicolor| | 4.9 | 2.4 | Iris-versicolor| | 6.6 | 2.9 | Iris-versicolor| | 5.2 | 2.7 | Iris-versicolor| | 5.9 | 3.0 | Iris-versicolor| | 6.2 | 2.2 | Iris-versicolor| | 6.1 | 2.9 | Iris-versicolor| | 5.6 | 3.0 | Iris-versicolor| | 5.9 | 3.0 | Iris-versicolor| | 6.7 | 3.1 | Iris-versicolor| | 5.8 | 2.7 | Iris-versicolor| | 5.6 | 2.5 | Iris-versicolor| | 6.3 | 3.4 | Iris-versicolor| | 5.2 | 2.3 | Iris-versicolor| | 5.7 | 2.8 | Iris-versicolor| | 6.6 | 3.0 | Iris-versicolor| | 5.7 | 2.9 | Iris-versicolor| | 5.8 | 2.8 | Iris-versicolor| | 6.1 | 2.9 | Iris-versicolor| | 6.4
### 2.3.2: Excel: Linear Regression

#### Click this link to download the spreadsheet for use in this activity.
[Spreadsheet Download Link]

### Jump to level 1

The famous iris dataset (the first sheet of the spreadsheet linked above) was first published in 1936 by Ronald Fisher. The dataset contains 50 samples from 3 iris species: setosa, virginia, and versicolor. Four features are measured, all in cm: sepal length, sepal width, petal length, and petal width.

**Question:** What is the equation for the least square regression line where the independent or predictor variable is sepal length, and the dependent or response variable is sepal width for iris versicolor?

Equation: 
\[ \hat{y} = \text{Ex: 1.234} \cdot x + \text{Ex: 1.234} \]

**Question:** What is the predicted sepal width for iris versicolor for a flower with a sepal length of 6.33?

Predicted Sepal Width:
\[ \text{Ex: 5.12 cm} \]

[Previous] [Check] [Next]
Transcribed Image Text:### 2.3.2: Excel: Linear Regression #### Click this link to download the spreadsheet for use in this activity. [Spreadsheet Download Link] ### Jump to level 1 The famous iris dataset (the first sheet of the spreadsheet linked above) was first published in 1936 by Ronald Fisher. The dataset contains 50 samples from 3 iris species: setosa, virginia, and versicolor. Four features are measured, all in cm: sepal length, sepal width, petal length, and petal width. **Question:** What is the equation for the least square regression line where the independent or predictor variable is sepal length, and the dependent or response variable is sepal width for iris versicolor? Equation: \[ \hat{y} = \text{Ex: 1.234} \cdot x + \text{Ex: 1.234} \] **Question:** What is the predicted sepal width for iris versicolor for a flower with a sepal length of 6.33? Predicted Sepal Width: \[ \text{Ex: 5.12 cm} \] [Previous] [Check] [Next]
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