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Find the mean, median, and mode, respectively, of the following data:

3, 3, 5, 8, 9, 13, 17

A)
8.28; 8; 3.
B)
8; 8.28; 3.
C)
3; 8.28; 8.

TOP

Find the mean, median, and mode, respectively, of the following data:

3, 3, 5, 8, 9, 13, 17

A)
8.28; 8; 3.
B)
8; 8.28; 3.
C)
3; 8.28; 8.



Mean = (3 + 3 + 5 + 8 + 9 + 13 + 17) / 7 = 8.28; Median = middle of distribution = 8 (middle number); Mode = most frequent = 3.

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An investor has a $15,000 portfolio consisting of $10,000 in stock A with an expected return of 20% and $5,000 in stock B with an expected return of 10%. What is the investor’s expected return on the portfolio?

A)
16.7%.
B)
12.2%.
C)
7.9%.

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An investor has a $15,000 portfolio consisting of $10,000 in stock A with an expected return of 20% and $5,000 in stock B with an expected return of 10%. What is the investor’s expected return on the portfolio?

A)
16.7%.
B)
12.2%.
C)
7.9%.



Find the weighted mean where the weights equal the proportion of $15,000. [(10,000 / 15,000) × 0.20] + [(5,000 / 15,000 × 0.10] = 16.7%.

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An investor has a portfolio with 10% cash, 30% bonds, and 60% stock. If last year’s return on cash was 2.0%, the return on bonds was 9.5%, and the return on stock was 25%, what was the return on the investor’s portfolio?

A)

18.05%.

B)

36.50%.

C)

22.30%.

TOP

An investor has a portfolio with 10% cash, 30% bonds, and 60% stock. If last year’s return on cash was 2.0%, the return on bonds was 9.5%, and the return on stock was 25%, what was the return on the investor’s portfolio?

A)

18.05%.

B)

36.50%.

C)

22.30%.




Find the weighted mean of the returns. (0.10 × 0.02) + (0.30 × 0.095) + (0.60 × 0.25) = 18.05%

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Which of the following statements about a normal distribution is least accurate?

A)
Approximately 68% of the observations lie within +/- 1 standard deviation of the mean.
B)
The mean and variance completely define a normal distribution.
C)
A normal distribution has excess kurtosis of three.

TOP

Which of the following statements about a normal distribution is least accurate?

A)
Approximately 68% of the observations lie within +/- 1 standard deviation of the mean.
B)
The mean and variance completely define a normal distribution.
C)
A normal distribution has excess kurtosis of three.



Even though normal curves have different sizes, they all have identical shape characteristics. The kurtosis for all normal distributions is three; an excess kurtosis of three would indicate a leptokurtic distribution. Both remaining choices are true.

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An investor has the following assets:

  • $5,000 in bonds with an expected return of 8%.
  • $10,000 in equities with an expected return of 12%.
  • $5,000 in real estate with an expected return of 10%.

What is the portfolio's expected return?

A)
10.00%.
B)
10.50%.
C)
11.00%.

TOP

An investor has the following assets:

  • $5,000 in bonds with an expected return of 8%.
  • $10,000 in equities with an expected return of 12%.
  • $5,000 in real estate with an expected return of 10%.

What is the portfolio's expected return?

A)
10.00%.
B)
10.50%.
C)
11.00%.



Expected return is the weighted average of the individual expected values. The expected return is: [(5,000) × (10.00) + (5,000) × (8.00) + (10,000) × (12.00)] / 20,000 = 10.50%.

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上一主题:Reading 7: Statistical Concepts and Market Returns-LOS f习题
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