The shape of the chisquare distribution is leftskewed True

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

Solution

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.