iii. Construct a summary stat for all the variables in the HousePrices data. ( 5 points) What is the percentage of houses in the data with Driveway, Gas-Heat and Air-conditioning present? (Hint: find the mean after creating dummy variables with driveway, gasheat, and aircon variables respectively). (5 points) Construct a linear regression model to test whether number of bedrooms inuence house prices. Provide a summary of the linear regression model using summaryO function. (10 points)