Download and read the "Real estate valuation data set.xlsx$"$ dataset. You can find the

description of the features and targets on the UCI repository website.

$2.$ Split the dataset in train and test set $($use your choice of splitting$).$ Train a linear

regression model and report the performance $($use your choice of at least three

performance metrics$).$

$3.$ Continue from question $2,$ use leave$-$one$-$out validation and five fold cross validation

and report the model performance. Compare the three evaluation methods and

suggest which one is more reliable.

$4.$ Continue from question $2,$ apply L$1$ and L$2$ regularization on the linear regression

model developed using the same training set. Compare the performance and

indicate key findings