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La estadística es la ciencia que se ocupa del estudio y la aplicación del conjunto de métodos necesarios para recoger, clasificar, representar y resumir los datos de un experimento aleatorio, así como para la realización de inferencias a partir del análisis de estos datos. Proporciona los procedimientos para evaluar la conformidad de la información empírica con los modelos teóricos propuestos que intentan explicar la realidad. En la actualidad la estadística está experimentando un importante avance, fruto de la disponibilidad de medios informáticos cada vez más avanzados que permiten el manejo de grandes volúmenes de datos, así como la aplicación de nuevos métodos. En esta obra se abordan los contenidos de estadística descriptiva, cálculo de probabilidades y distribuciones de probabilidad e inferencia estadística. Para su estudio sólo se requiere una formación matemática básica, pues se incide en la interpretación y la aplicación de los métodos estadísticos más que en la formulación matemática de éstos. En cada capítulo, tras la exposición de los conceptos, se incluyen ejercicios resueltos y propuestos que ayudarán a una mejor comprensión de dichos contenidos. Estos ejercicios provienen, en su mayoría, de exámenes o de problemas resueltos en clase por los autores en alguna de las titulaciones en las que han impartido docencia (Ingeniería, Economía y Biología, fundamentalmente). Los últimos capítulos incluyen sendas colecciones de cuestiones de respuesta múltiple para una autoevaluación de los conocimientos adquiridos por el alumno en cada una de las dos partes en las que se divide el texto.