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<p>La variable X expresa la calificación obtenida en el primer curso de bachillerato y la variable Y es la nota media de bachillerato. Se dispone de los siguientes datos correspondientes a 9 alumnos.</p> <p> </p> <table style="width: 353px; height: 40px;" border="1" frame="border"> <tbody> <tr> <td style="text-align: center;"><span style="background-color: #c0c0c0;">X</span></td> <td style="text-align: center;">#a</td> <td style="text-align: center;">#b</td> <td style="text-align: center;">#c</td> <td style="text-align: center;">#d</td> <td style="text-align: center;">#e</td> <td style="text-align: center;">#f</td> <td style="text-align: center;">#g</td> <td style="text-align: center;">#h</td> <td style="text-align: center;">#i</td> </tr> <tr> <td style="text-align: center;"><span style="background-color: #c0c0c0;">Y</span></td> <td style="text-align: center;">#a1</td> <td style="text-align: center;">#b1</td> <td style="text-align: center;">#c1</td> <td style="text-align: center;">#d1</td> <td style="text-align: center;">#e1</td> <td style="text-align: center;">#f1</td> <td style="text-align: center;">#g1</td> <td style="text-align: center;">#h1</td> <td style="text-align: center;">#i1</td> </tr> </tbody> </table> <p>Se pide:</p> <ol> <li>Calcular la recta de regresión de Y sobre X.</li> <li>¿Qué nota media se puede predecir para una persona que ha obtenido #m en el primer curso de bachillerato?</li> </ol> <p><span style="font-size: x-small;"> <span style="color: #ff0000;">En lugar de la coma decimal, utilizar el punto.</span></span></p> <p> </p> <div>Recta de regesión de Y sobre X {:SA:=#rect}</div> <div> </div> <div>Nota media de bachillerato = {:SA:=#mb}</div> <div> </div> <p> </p>
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Monday, 27 June 2016, 2:18 PM
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