Reading 7: Statistical Concepts and Market Returns - LOS j normal, white, style

mayanfang1

Q6. A distribution that is more peaked than normal is:

A)   leptokurtic.

B)   skewed.

C)   platykurtic.

Q7. A distribution that has positive excess kurtosis is:

A)   more skewed than a normal distribution.

B)   more peaked than a normal distribution.

C)   less peaked than a normal distribution.

Q8. Which of the following statements about skewness and kurtosis is least accurate?

A)   Kurtosis is measured using deviations raised to the fourth power.

B)   Values of relative skewness in excess of 0.5 in absolute value indicate large levels of skewness.

C)   Positive values of kurtosis indicate a distribution that has fat tails.

mayanfang1

答案和详解如下：

Q6. A distribution that is more peaked than normal is:

A)   leptokurtic.

B)   skewed.

C)   platykurtic.

Correct answer is A)

A distribution that is more peaked than normal is leptokurtic. A distribution that is flatter than normal is platykurtic.

Q7. A distribution that has positive excess kurtosis is:

A)   more skewed than a normal distribution.

B)   more peaked than a normal distribution.

C)   less peaked than a normal distribution.

Correct answer is B)

A distribution with positive excess kurtosis is one that is more peaked than a normal distribution.

Q8. Which of the following statements about skewness and kurtosis is least accurate?

A)   Kurtosis is measured using deviations raised to the fourth power.

B)   Values of relative skewness in excess of 0.5 in absolute value indicate large levels of skewness.

C)   Positive values of kurtosis indicate a distribution that has fat tails.

Correct answer is C)

Positive values of kurtosis do not indicate a distribution that has fat tails. Positive values of excess kurtosis (kurtosis > 3) indicate fat tails.

linnaliu

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jacky_z

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Hzhenming

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gracesun

thanks a lot

zeraeh

看答案，谢谢LZ

abletang

Thanks!

风烈

谢谢楼主

dullmul

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