WGU C957

C957 12 studiers recently 4.8 (4 reviews) Students also studied Terms in this set (121) Social SciencesEconomics Econometrics Save WGU C723 Quantitative Analysis for ...114 terms JessicaLynnWahl Preview WGU - D089 Principles of Economic...263 terms Marcel_GilesPreview Western Governors University Appli...139 terms surpherdavePreview Wgu c9 14 terms Previe Practice questions for this set Learn1 / 6Study using Learn L + m Constant e2.71828 slope-intercept formulay = mx + b L + mthe upper limit of a logistic function equation mthe lower limit of a logistic equation Choose an answer 1asymptote upper limit2asymptote lower limit 3no asymptote4local maximum/minimum Don't know?

krate of increase for a logistic equation Cstart of increase for a logistic equation linearfunction that is a straight line polynomialfunction with curves and no asymptote 0.7-1.0r^2-value showing a strong correlation 0.3-0.7r^2-value showing a moderate correlation 0.0-0.3r^2-value showing a weak correlation outliera data point which is distinctly separate from all others within a data set for reasons beyond the data coefficient of determinationrating how well the function fits the real world data r^2coefficient of determination regression equationbest fit equation for a set of real world data Concave upy = x^2 Concave downy = -x^2 inflection pointa point where the concavity changes asymptotea line that continually approaches a given curve but does not meet it at any finite distance. A natural limitation exponential functiona function with 1 curve and 1 asymptote logistic functionfunction with 2 curves and 2 asymptotes Concave up parametersthe function is increasing at an faster and faster rate OR the function is decreasing at a slower and slower rate concave down parametersthe function is increasing at a slower and slower rate OR the function is decreasing at a faster and faster rate quantitative variablea characteristic that can be measured numerically

qualitative variabledo not have a numerical value, but describe something; colors, car model, political party, computer brands independent variableexplains, influences, or affects the other variable; located on the x-axis of a graph dependent variableresponds to the IV; located on the y-axis inputindependent variable outputdependent variable function notationf(input) = output or f(x) = y inverse functiona function that "undoes" what the original function does intervalrange of values bracketsused to indicate an endpoint of an interval is included parenthesesused to indicate an open endpoint in an interval Moore's Lawabout every 2 years, the number of transistors that can fir on a circuit doubles inverse function denotationf^-1(x) Order of OperationsParentheses, Exponents, Multiplication, Division, Addition, Subtraction linear functiony = mx + b line's slopey = mx + b rate of changedescribes how a quantity is changing over time (per) y-intercepty = mx + b Multivariateinvolving multiple factors, causes, or variables temperature conversionC(F) = (F-32)/1.8

F(C) = 1.8C + 32

originA fixed point from which coordinates are measured.(y, x)what is the inverse of (x, y) m = (y2-y1)/(x2-x1)slope formula linear function aspectalways has the same rate of change

ratioa comparison of two quantities starting values and slopesimportant aspects of linear functions

slopespositive: lines that increase

negative: lines that decrease

scatterplota graphed cluster of dots, each of which represents the values of two variables line of best fita line drawn in a scatter plot to fit most of the dots and shows the relationship between the two sets of data least-squares regression algorithmused to find the best-fit line for the scatterplot regression lineline of best fit correlation coefficientmeasures how closely the data values in a scatterplot follow the path of a straight line r-valuecorrelation coefficient is a number between -1 and 1 that measures the strength and direction of a linear relationship r^2-valuecoefficient of determination; number between 0 and 1; is the appropriate measure for determining how well a particular function fits, or models the data always the samerate of change for a linear function polynomial functiona function with real non-negative numbers - constants, variable, and exponents, that can be combined using addition, subtraction, multiplication, and division polynomial's degreevariable's maximum exponent linear polynomialdegree of 1 quadratic polynomialdegree of 2 cubicDegree of 3