Two movie reviewers gave their ratings (0 to 4 stars) to ten movies released this past month as follows: 
The rank order correlation is to be used.
What is the value of 
?
Definitions:
Required Return
The smallest annual return percentage required to motivate persons or firms to allocate funds into a certain security or initiative.
Risk-Free Rate
The theoretical rate of return of an investment with zero risk, typically represented by government bonds.
Market Risk Premium
The additional profit that an investor predicts they will earn from a risky market portfolio as opposed to risk-free financial instruments.
Expected Return
The anticipated average return on an investment, taking into account all potential outcomes and their probabilities.
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