A data set with 7 observations yielded the following.Use the simple linear regression model. 
Find the estimated slope.
Definitions:
Total Return
The overall gain or loss on an investment over a specified time period, including interest, dividends, and capital gains.
Capital Gain Yield
The rate of return on an investment based on the increase in its market value over the original purchase price, excluding dividends or interest.
Income Yield
The income return on an investment, typically expressed as a percentage of the investment’s cost or current market value.
Rate of Total Return
The percentage gain or loss on an investment over a specified period, considering both price appreciation and dividends or interest.
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