Question introductive<p>An analyst gathers the following information for a market-capitalization-weighted index comprised of securities MNO, QRS, and XYZ:</p> <table style="width:80%;text-align:center"> <tr> <th>Security</th> <th>Beginning of Period Price (¥)</th> <th>End of Period Price (¥)</th> <th>Dividends per Share (¥)</th> <th>Shares Outstanding</th> </tr> <tr> <td>MNO</td> <td>2,500</td> <td>2,700</td><td>100</td><td>5,000</td> </tr> <tr> <td>QRS</td> <td>3,500</td> <td>2,500</td><td>150</td><td>7,500</td> </tr> <tr> <td>XYZ</td> <td>1,500</td> <td>1,600</td><td>100</td><td>10,000</td> </tr> </table>

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