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P2: Given the following returns for an investment in Zain company, find the expected return and the standard deviation. Year 2010 2011 2012 2013 2014

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P2: Given the following returns for an investment in Zain company, find the expected return and the standard deviation. Year 2010 2011 2012 2013 2014 Return (ri) 10% 11% 15% -6% 20% A- Calculate the expected return for this investment? B- Calculate the standard deviation for this investment

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