Correlation and Regression Data What is the explanatory vari

Correlation and Regression Data What is the explanatory variable? What is the response variable? What does the slope mean in this context? What does the Y intercept mean in this context? Is it meaningful?

Solution

Ans(a):

explanatory variable is always plotted on the x-axis and we see \"flashdrives\" are on x-axis so

explanatory variable = flashdrives

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Ans(b):

response variable is always plotted on the y-axis and we see \"weeks\" are on y-axis so

response variable = weeks

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Ans(c):

slope represents ratio of weeks and flashdrives. that means how many number of weeks per flashdrive

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Ans(d):

y-intercept means y-value when x=0

here x=0 means number of flashdrives =0

so y-intercept indicates week in which number of flashdrives =0