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- https://math.libretexts.org/Courses/Santiago_Canyon_College/HiSet_Mathematica_(Lopez)/13%3A_Estadisticas_Recopilacion_de_Datos/13.01%3A_Poblaciones_y_muestrasAntes de comenzar a recopilar y analizar datos necesitamos caracterizar a la población que estamos estudiando. Si queremos estudiar la cantidad de dinero que un estudiante universitario típico de prim...Antes de comenzar a recopilar y analizar datos necesitamos caracterizar a la población que estamos estudiando. Si queremos estudiar la cantidad de dinero que un estudiante universitario típico de primer año gasta en libros de texto, nuestra población podría ser todos estudiantes de primer año en tu universidad. Una muestra es un subconjunto más pequeño de toda la población, idealmente uno que sea bastante representativo de toda la población. Se discuten los métodos de muestreo con mayor detalle
- https://math.libretexts.org/Courses/Mission_College/Math_10%3A_Elementary_Statistics_(Sklar)/01%3A_Sampling_and_Data/1.01%3A_Definitions_of_Statistics_Probability_and_Key_TermsThe mathematical theory of statistics is easier to learn when you know the language. This module presents important terms that will be used throughout the text.
- https://math.libretexts.org/Bookshelves/Applied_Mathematics/Applied_Finite_Mathematics_(Sekhon_and_Bloom)/01%3A_Linear_Equations/1.01%3A_Graphing_a_Linear_EquationEquations whose graphs are straight lines are called linear equations. A line is completely determined by two points. Therefore, to graph a linear equation we need to find the coordinates of two point...Equations whose graphs are straight lines are called linear equations. A line is completely determined by two points. Therefore, to graph a linear equation we need to find the coordinates of two points. This can be accomplished by choosing an arbitrary value for x or y and then solving for the other variable.
- https://math.libretexts.org/Workbench/MAT_2420_Calculus_II/07%3A_Parametric_Equations_and_Polar_Coordinates/7.02%3A_Parametric_EquationsIn this section we examine parametric equations and their graphs. In the two-dimensional coordinate system, parametric equations are useful for describing curves that are not necessarily functions. Th...In this section we examine parametric equations and their graphs. In the two-dimensional coordinate system, parametric equations are useful for describing curves that are not necessarily functions. The parameter is an independent variable that both x and y depend on, and as the parameter increases, the values of x and y trace out a path along a plane curve.
- https://math.libretexts.org/Courses/SUNY_Geneseo/Math_222_Calculus_2/06%3A_Parametric_Equations_and_Polar_Coordinates/6.01%3A_Parametric_EquationsIn this section we examine parametric equations and their graphs. In the two-dimensional coordinate system, parametric equations are useful for describing curves that are not necessarily functions. Th...In this section we examine parametric equations and their graphs. In the two-dimensional coordinate system, parametric equations are useful for describing curves that are not necessarily functions. The parameter is an independent variable that both x and y depend on, and as the parameter increases, the values of x and y trace out a path along a plane curve.
- https://math.libretexts.org/Under_Construction/Purgatory/Remixer_University/Username%3A_Matthew.Lathrop@heartland.edu/test_cb2/2%3A_Sampling_and_Data/2.2%3A_Definitions_of_Statistics%2C_Probability%2C_and_Key_TermsThe mathematical theory of statistics is easier to learn when you know the language. This module presents important terms that will be used throughout the text.
- https://math.libretexts.org/Courses/De_Anza_College/Calculus_I%3A_Differential_Calculus/05%3A_Differential_Calculus_with_Parametric_Curves/5.01%3A_Parametric_EquationsIn this section we examine parametric equations and their graphs. In the two-dimensional coordinate system, parametric equations are useful for describing curves that are not necessarily functions. Th...In this section we examine parametric equations and their graphs. In the two-dimensional coordinate system, parametric equations are useful for describing curves that are not necessarily functions. The parameter is an independent variable that both x and y depend on, and as the parameter increases, the values of x and y trace out a path along a plane curve.
- https://math.libretexts.org/Courses/City_College_of_San_Francisco/CCSF_Calculus/10%3A_Parametric_Equations_and_Polar_Coordinates/10.02%3A_Parametric_EquationsThis section introduces parametric equations, where two separate equations define x and y as functions of a third variable, usually t. It explains how to graph parametric curves, eliminate...This section introduces parametric equations, where two separate equations define x and y as functions of a third variable, usually t. It explains how to graph parametric curves, eliminate the parameter to find Cartesian equations, and analyze motion along a path. Examples illustrate the flexibility of parametric equations in describing curves that are difficult to express in standard Cartesian form.
- https://math.libretexts.org/Courses/Cosumnes_River_College/Math_401%3A_Calculus_II_-_Integral_Calculus/05%3A_Parametric_Equations_and_Polar_Coordinates/5.01%3A_Parametric_EquationsThis section introduces parametric equations, where two separate equations define x and y as functions of a third variable, usually t. It explains how to graph parametric curves, eliminate...This section introduces parametric equations, where two separate equations define x and y as functions of a third variable, usually t. It explains how to graph parametric curves, eliminate the parameter to find Cartesian equations, and analyze motion along a path. Examples illustrate the flexibility of parametric equations in describing curves that are difficult to express in standard Cartesian form.
- https://math.libretexts.org/Bookshelves/Calculus/Calculus_(Guichard)/10%3A_Polar_Coordinates_and_Parametric_Equations/10.04%3A_Parametric_EquationsSuppose f(t) and g(t) are functions. Then the equations x=f(t) and y=g(t) describe a curve in the plane. But t in general is simply an arbitrary variable, often called in this case...Suppose f(t) and g(t) are functions. Then the equations x=f(t) and y=g(t) describe a curve in the plane. But t in general is simply an arbitrary variable, often called in this case a parameter, and this method of specifying a curve is known as parametric equations. One important interpretation of t is time. In this interpretation, the equations x=f(t) and y=g(t) give the position of an object at time t.
- https://math.libretexts.org/Courses/Fresno_City_College/Math_4A%3A_Trigonometry_(Stitz_Zeager_Remix)/06%3A_Complex_Numbers_Polar_Coordinates_and_Parametric_Equations/6.06%3A_Parametric_EquationsThere are scores of interesting curves which, when plotted in the xy-plane, neither represent y as a function of x nor x as a function of y. In this section, we present a new concept which allows ...There are scores of interesting curves which, when plotted in the xy-plane, neither represent y as a function of x nor x as a function of y. In this section, we present a new concept which allows us to use functions to study these kinds of curves.
