The shape of the chi-square distribution is left-skewed. True / False A correlat
ID: 3398058 • Letter: T
Question
The shape of the chi-square distribution is left-skewed. True / False
A correlation coefficient of 0.80 is an indication of a weak negative relationship between two variables. True / False
The correlation coefficient measures the percentage of the total variation of the dependent variable that is explained by the independent variable from a sample. True / False
A coefficient of determination equal to zero indicates that there is no relationship between the independent and dependent variables. True / False
Explanation / Answer
The shape of the chi-square distribution is left-skewed. True / False
Answer: False ( Right skewed)
A correlation coefficient of 0.80 is an indication of a weak negative relationship between two variables. True / False
Answer: False ( strong negative correlation)
The correlation coefficient measures the percentage of the total variation of the dependent variable that is explained by the independent variable from a sample. True / False
Answer: False (coefficient of determination measures the percentage of the total variation of dependent variable)
A coefficient of determination equal to zero indicates that there is no relationship between the independent and dependent variables. True / False
Answer: True
The coefficient of determination, r 2, is useful because it gives the proportion of
the variance (fluctuation) of one variable that is explained from the other variable.
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