"investment portfolio" exercises: sample variance

來源: 正保會計(jì)網(wǎng)校編輯：大耳朵圖圖 2020/09/09 11:43:35　字體：大小

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Questions 1:

A portfolio has the following returns:

	Portfolio Returns
2006	2.4%
2007	9.6%
2008	-4.0%
2009	5.6%
2010	4.8%
2011	-3.2%

The sample variance of the portfolio is closest to:

A. 0.23%.

B. 0.28%.

C. 0.36%.

Questions 2:

Which of the following types of institutions is most likely to have a long investment time horizon and a higher level of risk tolerance?

A. An endowment

B. An insurance company

C. A bank

View answer resolution

【Answer to question 1】（B）

【analysis】

The sample variance is calculated as the sum of squared deviations from the arithmetic mean.

The formula is shown in the following figure:

微信截圖_20200909113831

【Answer to question 2】（A）

【analysis】

Endowments have a long investment time horizon and a high level of risk tolerance.

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