Data Visualization:

$-$ Create scatter plots to visualize the relationship between 'Sales' and $\text{'}$TV Advertisement' spend as well as 'Sales' and 'Radio Advertisement' spend.

$3.$ Model Development using SGD:

$-$ Initialize

to random values or to a specific value of your choice.

$-$ Develop a loss function and compute its derivatives with respect to each

$.$

$-$ Create an iterative procedure to minimize your loss function $($Gradient Descent$).$

$-$ Adjust the learning rate and the number of iterations to achieve convergence of your parameters.

$-$ Predict sales using your optimized

values.

$4.$ Ridge Regression: