A sales manager for an advertising agency believes there is a relationship between the number of contacts and the amount of the sales. To verify this belief, the following data was collected: 
What is the value of the coefficient of determination?
Definitions:
Investing Activity
Financial actions related to the purchase and sale of long-term assets and investments not included in cash equivalents.
Financial Activity
Transactions or events that affect the equity or debt of a company, including investments, financing, and distributing dividends.
Noncash Financing
Noncash financing activities are financial transactions that do not involve the physical flow of cash, such as issuing stock to purchase an asset or converting debt to equity.
Investing Activities
Investing activities are financial transactions related to the acquisition or sale of long-term assets or investments not related to the core business operations.
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