Module 6 Statistics 2024-2025 Questions & Answers, Exams of Mathematics

Download Module 6 Statistics 2024-2025 Questions & Answers and more Exams Mathematics in PDF only on Docsity! Module 6 Statistics 2024-2025 Questions & Correct, Verified Answers. Graded A+ association - ANSA pattern or relationship between two variables casual relationship - ANSA relationship between two variables that can be classified as cause-and-effect. causation - ANSA relationship between cause and effect between two or more variables. Control group - ANSIn an experimental study, this group does not receive treatment or receives a placebo coordinate plane - ANSA tool for graphing consisting of a horizontal x-axis and a vertical y x-axis correlation - ANSAn observed relationship between two quantitative variables. While this is most common a linear relationship, it does not need to be. Note that a observing correlation coefficient - ANSA measure of a linear relationship between to attributes. The numerical value demonstrates how closely the attributes vary together. Correlation coefficients near -1 and +1 a strong linear correlation while a correlation coefficient near 0 has a weak (or no) linear correlation. degree - ANSThe largest exponent in a mathematical expression or equation degrees of freedom - ANSA number whose value is one less than the sample size, when conducting the hypothesis test. experimental study - ANSThe researcher applies a treatment to one group and no treatment (or placebo) to a control group, to determine if there is causation between variables. extrapolate - ANSUsing information for a data set to make predictions about data outside the original set. Hypothesis test - ANSA statistical test that tells us whether a result is significant. least squares - ANSThe technique for finding the regression line. linear extrapolation - ANSEstimation using the linear regression equation is made outside know data points. linear interpolation - ANSEstimation using the linear regression equation is between known data points. lurking variable - ANSA variable that is not included in an analysis but is related to two (or more) other associated variable which was analyzed negative correlation - ANSA linear relationship between quantitative variables in which the dependent variable increases as the independent variable decreases. observational study - ANSThe researcher observes if there is an association between variables. There is no treatment or control group. p-value - ANSThe probability that the result was caused by chance population - ANSAn entire pool from which a sample is drawn positive correlation - ANSa linear relationship between quantitative variables in which the dependent variable increases as the independent variable increases regression analysis - ANSA statistical analysis tool that quantifies the relationship between a response a response variable and one or more explanatory variable. regression equation - ANSAn equation used to model the relationship between the response and explanatory variables in a regression.