DAA_06_Linear-models
Quiz
•
Science
•
University
•
Practice Problem
•
Hard
Alfonso Gar
Used 4+ times
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9 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which are linear models
anova
correlation
chi-square
Kruskal-Wallis
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pearson Correlation ranges
from -1 to 1
from -∞ to ∞
from 0 to 1
from -1 to 0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A correlation value of 0 means
There is no errors and therefore correlation is perfect
There is a perfect positive correlation
There is no correlation at all
Correlation cannot be 0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A correlation value of -1 means
There is no errors and therefore correlation is perfect
There is a perfect positive correlation
There is no correlation at all
There is a perfect negative correlation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
R2 coefficient of determination ranges
from -1 to 1
from -∞ to ∞
from 0 to 1
from -1 to 0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A R2 value of 0 means
The sum of errors is 0 and therefore the model is perfect
There is a negative relationship
There is no variance explained by the model
R2 cannot be 0
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The p value of a linear model means
The sum of all errors
The probability for the slope of the line to be 0
The probability for having an effect of x on y
The likelihood of the model.
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