Range and Interquartile range

Front

What is the definition of Range in statistics?

Back

The Range is the difference between the highest and lowest values in a data set.

Front

How do you calculate the Range?

Back

Range = Maximum value - Minimum value.

Front

What is the definition of Interquartile Range (IQR)?

Back

The IQR is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set.

Front

How do you calculate the Interquartile Range (IQR)?

Back

IQR = Q3 - Q1.

Front

What is the first quartile (Q1)?

Back

Q1 is the median of the lower half of a data set, representing the 25th percentile.

Front

What is the third quartile (Q3)?

Back

Q3 is the median of the upper half of a data set, representing the 75th percentile.

Front

What does it mean if the IQR is large?

Back

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

Front

What does it mean if the IQR is small?

Back

A small IQR indicates that the middle 50% of the data points are close together.

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 median of the data set: 203, 183, 212, 181, 157, 204, 189, 190?

Back

The median is 189.5.