1) In a regression, the dependent variable and the independent variable must hav
ID: 3174406 • Letter: 1
Question
1) In a regression, the dependent variable and the independent variable must have the same number of observations.
True
False
2) In linear regression, the coefficient is estimated by minimizing:
The scores on the x-axis
The sum of the scores
The sum of the errors
The sum of the squared errors
3) Suppose you performed a linear regression on a data set, and got the following result:
Intercept: 2
Coefficient: 3
What is the equation for the regression line?
aThe scores on the x-axis
bThe sum of the scores
cThe sum of the errors
dThe sum of the squared errors
Explanation / Answer
ans=
1) False, because both X(independent) and Y(dependent) variables have contain different data not same data
he DV represents the model’s output or outcome that you are studying. It is usually given the letter “y” and is traditionally graphed on the y-axis. The IV represents the potential causes for variation in the model
2) D) the estimated values of regression equaltion are obtained sum suares of deviation(errors) of observed values and their estimated values
3) C)The regression equation isY=2+3x
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