2. Paula and Mike jointly own shares of stock of a corporation, have a joint bank account, and have purchased and own as tenants in common a piece of real estate. They share equally the dividends paid on the stock, the interest on the bank account, and the rent from the real estate. Without Paula's knowledge, Mike makes a trip to inspect the real estate and on his way runs over Wilbur. Wilbur sues Paula and Mike for his personal injuries, joining Paula as defendant on the theory that Paula was Mike's partner. Is Paula a partner of Mike?