Refer to Exercise. In Exercise, we calculated the returns on the following selected stocks on the NASDAQ

Question:

Refer to Exercise.
In Exercise, we calculated the returns on the following selected on the NASDAQ Exchange for the period January 2008 to December 2012: Adobe Systems (ADBE), Amazon (AMZN), Amgen (AMGN), Apple (AAPL), Bed Bath & Beyond (BBBY), Cisco Systems (CSCO), Comcast (CMCSA), Costco Wholesale (COST), Dell (DELL), Dollar Tree (DLTR), Expedia (EXPE), Garmin (GRMN), Google (GOOG), Intel (INTC), Mattel (MAT), Microsoft (MSFT), Netflix (NFLX), Oracle (ORCL), Research in Motion (RIMM), ScanDisk (SNDK), Sirius XM Radio (SIRI), Staples (SPLS), Starbucks (SBUX), Whole Foods Market (WFM), Wynn Resorts (WYNN), Yahoo (YHOO)

a. Compute the expected value and variance of the described next. AMZN (20.4%), AAPL (8.3%), DELL (9.4%), DLTR (62%)
b. Can you do better? That is, can you find a whose expected value is greater than or equal to 2% and whose variance is less than the one you calculated in part (a)?

Stocks
Stocks or shares are generally equity instruments that provide the largest source of raising funds in any public or private listed company's. The instruments are issued on a stock exchange from where a large number of general public who are willing... Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...