Calculate the mean, variance, and the standard deviation of each security’s annual rate of return.

Essentials Of Investments
11th Edition
ISBN:9781260013924
Author:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Publisher:Bodie, Zvi, Kane, Alex, MARCUS, Alan J.
Chapter1: Investments: Background And Issues
Section: Chapter Questions
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1. Walmart stock price for 10 years 

Year Average Stock Price
2020 120.8603
2019 108.4054
2018 92.3698
2017 78.9624
2016 69.5471
2015 72.4911
2014 77.3274
2013 75.3205
2012 67.2151
2011 54.3535
2010 53.0022

2. Marriot stock price for 10 yeras .

Year Average Stock Price
2020 102.9253
2019 129.373
2018 129.5615
2017 103.2572
2016 69.5865
2015 75.7721
2014 63.2982
2013 42.1856
2012 37.0968
2011 33.7237
2010 33.7203

3. Micrososft stock prices.

Year Average Stock Price
2020 178.1475
2019 130.382
2018 101.034
2017 71.984
2016 55.2593
2015 46.7136
2014 42.4533
2013 32.4915
2012 29.8203
2011 26.0522
2010 27.0584

4. Apple stock prices for 10 years 

Year Average Stock Price
2020 314.1174
2019 208.2559
2018 189.0534
2017 150.5511
2016 104.604
2015 120.0385
2014 92.2646
2013 67.5193
2012 82.2928
2011 52.0006
2010 37.1203

5. Coca Cola stock prices for 10 years. 

Year Average Stock Price
2020 49.4781
2019 50.8279
2018 45.4099
2017 44.348
2016 43.545
2015 41.2415
2014 40.8417
2013 39.6644
2012 37.0594
2011 33.324
2010 28.2693

Calculate the mean, variance, and the standard deviation of each security’s annual rate of return.

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