Skewness and Kurtosis

The data in the picture is

• skewed to the left

• skewed to the right

• positively skewed

• symmetrical

A positive number means positive skew. Negative number means negative skew, What do you think 0 means?

• Very negatively skewed

• Moderate negative skew

• Symmetrical data

• Moderate positive skew

It refers to a distortion or asymmetry that deviates from the symmetrical, bell curve, or normal distribution in a set of data.

• Kurtosis

• Skewness

• Leptokurtic

• Positively Skewed

Scores that tend to concentrate at the right end are considered

• Positively skewed

• Leptokurtic

• Negatively skewed

• Median

Scores that tend to concentrate at the left-end are considered

• Positively skewed

• Mesokurtic

• Negatively skewed

• Mode

If the measure of skewness (Sk) is equal to zero, then the distribution is

• Positively skewed

• Mesokurtic

• Negatively skewed

• Symmetric

If the measure of skewness (Sk) is greater than zero, then the distribution is more likely to be

• Positively skewed

• Asymmetric

• Negatively skewed

• Symmetric

If the measure of skewness (Sk) is less than zero, then the distribution is more likely to be

• Positively skewed

• Asymmetric

• Negatively skewed

• Symmetric

If the mean, median, and mode are equal, then the distribution must be

• Positively skewed

• Asymmetric

• Negatively skewed

• Symmetric