2 The famous iris dataset (the first sheet of the spreadsheet linked above) was first published in 1936 by Fisher. The dataset contains 50 samples from 3 iris species: setosa, virginia, and versicolor. Four featur 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 length and the dependent or response variable is sepal width for iris setosa? Ex: 1.234 ac+ Ex: 1.234 What is the predicted sepal width for iris setosa for a flower with a sepal length of 7.47? Ex: 5.12 cm