What is the mode of a distribution of scores for a variable measured by? What is the variance of a distribution of scores for a variable measured by? What is the mean of a distribution of scores for a...

What is the mode of a distribution of scores for a variable measured by?

What is the variance of a distribution of scores for a variable measured by?

What is the mean of a distribution of scores for a variable measured by?

What is the standard deviation of a distribution of scores for a variable measured by?