3.6

Question 1

symmetrical distribution

Answer 1

Mean and median have the same value
If exactly one mode, it has the same value as the mean and the median
Distribution may have more than one mode, or no mode at all

Question 2

skewed distribution

Answer 2

Mean, influenced by extreme scores, is found far toward the long tail (positive or negative)
Median, in order to divide scores in half, is found toward the long tail, but not as far as the mean
Mode is found near the short tail.
If Mean – Median > 0, the distribution is positively skewed.
If Mean – Median < 0, the distribution is negatively skewed