Find the Coefficient of Correlation of the Line That Best $\{ ( 2,2 ) , ( - 3,2 ) , ( 7 , - 2 ) \}$

question 127

Short Answer

Find the coefficient of correlation of the line that best fits the data set.
​ $\{ ( 2,2 ) , ( - 3,2 ) , ( 7 , - 2 ) \}$ ​
Please give the answer to four decimal places if necessary.

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Definitions:

Allowance for Sales Discounts

An account used in bookkeeping to estimate the reduction in revenue due to sales discounts that customers are expected to take advantage of.

Accounts Receivable

Debts owed by customers to a business for items or services that have been furnished but not compensated.

Sales Discounts

A reduction in the price of goods sold, offered by the seller to the buyer, often to encourage prompt payment.

Periodic Inventory System

A method of inventory valuation for financial reporting purposes where a physical count of all inventory is performed at specific intervals to determine the level of inventory and the cost of goods sold.