Reading 7: Statistical Concepts and Market Returns - LOS f generated, following, returns, equity, white

mayanfang1

Q8. For the past three years, Acme Corp. has generated the following sample returns on equity (ROE): 4%, 10%, and 1%. What is the sample variance of the ROE over the last three years?

A)   21.0%.

B)   4.6%.

C)   21.0(%²).

Q9. Given the following annual returns, what is the range?

2000      2001   2002    2003   2004

15%       2%       5%       (7%)    0%

A)   3.0%.

B)   22.0%.

C)   15.0%.

mayanfang1

答案和详解如下：

Q8. For the past three years, Acme Corp. has generated the following sample returns on equity (ROE): 4%, 10%, and 1%. What is the sample variance of the ROE over the last three years?

A)   21.0%.

B)   4.6%.

C)   21.0(%²).

Correct answer is C)

[(4 − 5)² + (10 − 5)² + (1 − 5)²] / (3 − 1) = 21(%²).

Q9. Given the following annual returns, what is the range?

2000      2001   2002    2003   2004

15%       2%       5%       (7%)    0%

A)   3.0%.

B)   22.0%.

C)   15.0%.

Correct answer is B)

Range = Highest Value − Lowest Value. 15% − (7%) = 22.0%.

jacky_z

thanks

Hzhenming

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zeraeh

看答案，谢谢LZ

saint_zhu

很多很多

pigalwayspig

1

lovespeaker

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dullmul

answers

hjl2000

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