We can reduce volatility by investing in less than perfectly correlated assets through diversification because the expected return of a portfolio is the weighted average of the expected returns of its stocks, but the volatility of a portfolio .

but the volatility of a portfolio is less than the weights in the stocks.

Explanation:

Volatility means the rapid price fluctuations in the markets. When there is price fluctuation then there is risk of loosing a major part of investment or the investment completely. By investing in diversified assets the volatility can be reduced which also reduces the risks.

The each of components of the investment portfolio has expected returns is done through weighted average. The percentage of the portfolio's total value is used for weighted average of the components. The expected returns are calculated based on the historical cost.

you can lose ranking 2 ways.

1) you don't have enough points due to you expending them by asking questions/your answers are deleted.

2) your brainliest's expired. this means that brainliests, once they exceed the 30 day limit, expires. this is to ensure that you continue to contribute into the community at a constant rank if you want to continue to have/exceed the rank you have right now.

if you go to profile, and click "show more information" located on the bottom left of the box with your information (on top of the questions answered, questions asked, and friends), you will be given the following information (example):

member since : 02/13/2017, 18: 11

questions answered: 9741

questions asked: 162

no. of brainliest answers: 1575

brainliest answers in last 30 days: 10

warnings: 0 view

questions/answers reported: 2637

questions/answers incorrectly reported: 64

look at the "brainliest answers in the last 30 days". this is the one that will affect your rank other than your points. again, once your brainliest expires (was earned 31+ days ago), it will not be counted.

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