To answer questions for this task, you need to join the imported data together. a. Create a data set named Banking in mylib library by joining customer_promo_recode, customer_banking_info, and customer_demographics_recode together. (6 Points) b. Assume that the first two digits of the customer ID capture each customer's region information. Following the steps below, construct a Summary Table to count the number of customers by region and contact method. Create a data set named Banking_Region in the mylib library. (4 Points) Three columns should be included in this data: Customer_ID, Region, and Contact. (Note: While Customer_ID and Contact are already in the Banking data, Region contains the first two digits of the Customer_ID.) (3 Points)