Here, we have to assume that,
X variables are the stock returns and Y variables are portfolio returns.
As we know that MEAN =
TOTAL OBSERVATION÷NO.OF OBSERVATIONS. Then proceed further
For those who are stuck with this question.
the choice of which variable goes on the x-axis and which goes on the y-axis is somewhat arbitrary. It ultimately depends on what you're trying to analyze or compare. In this specific case, it appears that the managed portfolio is being considered as the dependent variable (y), I remember the linear regression formula Y=a+bx. and to find Y we plot dependent variable on Y-axis. it suggests that the interest lies in understanding how the returns of the managed portfolio relate to the country's stock index returns.( like a benchmark). I hope this makes sense.
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