IQR

Front

What does IQR stand for?

Back

Interquartile Range.

Front

How is the IQR calculated?

Back

IQR = Q3 - Q1, where Q3 is the third quartile and Q1 is the first quartile.

Front

What is a quartile?

Back

A quartile is a type of quantile that divides a ranked data set into four equal parts.

Front

What is the first quartile (Q1)?

Back

Q1 is the median of the lower half of the data set.

Front

What is the second quartile (Q2)?

Back

Q2 is the median of the entire data set.

Front

What is the third quartile (Q3)?

Back

Q3 is the median of the upper half of the data set.

Front

What is the purpose of calculating the IQR?

Back

The IQR measures the spread of the middle 50% of the data and is used to identify outliers.

Front

How do you find the median of a data set?

Back

To find the median, arrange the data in ascending order and locate the middle value.

Front

What is the range of a data set?

Back

The range is the difference between the maximum and minimum values in the data set.

Front

What does it mean if a data set has a large IQR?

Back

A large IQR indicates a wide spread of the middle 50% of the data.