Point biseral correlation is used when one of the variables is dichotomous. (True or false?)

Point biseral correlation is used when one of the variables is dichotomous.
 
  Indicate whether the statement is true or false

Question 2

Correlations are typically used to examine mean differences between groups.
 
  Indicate whether the statement is true or false

Question 3

A scatterplot can be used to visualize the degree of association between 2 variables.
 
  Indicate whether the statement is true or false

Question 4

A correlation of .65 between depression and anxiety suggests that people who are highly depressed are reasonably likely to be highly anxious.
 
  Indicate whether the statement is true or false

Question 5

Restricted range has no effect on correlation coefficients.
 
  Indicate whether the statement is true or false