One-variable Statistics

Front

What happens to the mean when data is skewed to the right or left?

Back

The mean gets pulled away from the center of data or the typical value.

Front

What measure of center should be used for skewed data?

Back

Median.

Front

What does a data set with more variability indicate?

Back

It will have a higher standard deviation or IQR.

Front

How does an outlier affect the mean and standard deviation?

Back

An outlier has a great effect on the mean and standard deviation.

Front

What is the median?

Back

The middle value of a data set.

Front

What is the mode?

Back

The most frequently occurring number in a data set.

Front

What is the range of a data set?

Back

The difference between the largest and smallest values.

Front

What is standard deviation?

Back

A measure of the amount of variation or dispersion in a set of values.

Front

What does IQR stand for?

Back

Interquartile Range, which measures the middle 50% of a data set.

Front

What is a skewed distribution?

Back

A distribution that is not symmetrical and has a tail on one side.