WK8-D- Mathematical Explorations: Descriptive Statistics A regression analysis i
ID: 3171547 • Letter: W
Question
WK8-D- Mathematical Explorations: Descriptive Statistics
A regression analysis is a statistical assessment of the association between two variables, one of which is dependent and the other, independent. The dependent variable is y and the independent variable is x. Regression analysis is used to find the relationships between these variables. Variables within a regression analysis can be negatively correlated or positively correlated.
A situation in which one could model a regression analysis could be the association of hours studied and a grade on a test. The independent variable in this situation is the hours studied, and the dependent variable is the grade on the test because the grade is dependentthe hours studied. The amount of hours one studies has a direct impact on a grade on a test. The relationship between hours studied and the grade on the test is positive because the more hours one studies, theoretically, the better their grade should be.
Complete the followig:
Write about a real-life situation from which one could model a regression.
A). Explain the situation in detail,
B). specifically, the independent variable
C). and dependent variable
Explanation / Answer
A) Let's suppose you are interested in the relationship between the predictor variables water and the response variable yield in different varieties of wheat plants. Characterizing trends in this system allows you to predict the expected yield of a particular variety of wheat given the amount of water you would like to use in your area.
B)water ( amount or number of irrigation) is indpendent variable
C) yield of wheat is dependent variable
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