What is the average discount offered for different types of credit cards?

Hint: Find out the average of discount for each credit card type.*/

i need proper sql query for this statement

New wheels Data Dictionary shipper_id: Unique ID of the Shipper shipper_name: Name of the shipper shipper_contact_detai1s: Contact detai1 of the shipper product_id: Unique ID of the Product vehicle_maker: vehicle Manufacturing company name vehicle_mode 1: Vehicle model name vehicle_color: color of the vehicle vehicle_mode1_year: Year of Manufacturing vehicle_price: Price of the vehicle quantity: ordered Quantity customer_id: Unique ID of the customer customer_name: Name of the customer gender: Gender of the customer job_title: Job Title of the customer phone_number: Contact detai1 of the customer emai1_address: Email address of the customer city: Residing city of the customer country: Residing country of the customer state: Residing state of the customer customer_address: Address of the customer order_date: Date on which customer ordered the vehicle order_id: Unique ID of the order ship_date: Shipment Date ship-mode: Shipping Mode/class shipping: shipping ways posta1_code: Postan code of the customer discount: Discount given to the customer for the particular order by credit card in percentage credit_card_type: credit Card Type credit card number: Credit card number customer_feedback: Feedback of the customer quarter_number : Quarter Number