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Percentile Location Formula

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Question 1
Multiple Choice
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Exhibit 1 shows the annual total returns for the MSCI Developed Markets Index over a 10-year period.

Exhibit 1: MSCI Developed Markets Index Returns

Year 1 9.15%   Year 6 21.48%
Year 2 5.34%   Year 7 14.29%
Year 3 13.02%  Year 8 –7.61%
Year 4 4.50%   Year 9 17.63%
Year 5 –28.47%  Year 10 26.75%

The third quintile return for the MSCI Developed Markets Index is closest to:

Explanation

The third quintile represents the 60th percentile.

Step 1: Use the percentile location formula:

L _{60} = (n +1) × \frac{60}{100} = ( 10+1) × 0.60 = 11 × 0.60 = 6.6

Step 2: Sort the returns in ascending order:

–28.47%, –7.61%, 4.50%, 5.34%, 9.15%, 13.02%, 14.29%, 17.63%, 21.48%, 26.75%

Step 3: Find the values between which the 60th percentile lies:

The 6.6th position lies between:

  • 6th value: 13.02%

  • 7th value: 14.29%

Step 4: Interpolate:

P60= 13.02 + ( 0.6 × (14.29 − 13.02)) = 13.02 + 0.6 × 1.27 = 13.02 + 0.762 = 13.78%

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