iqr

Front

What is the Interquartile Range (IQR)?

Back

The Interquartile Range (IQR) is a measure of statistical dispersion, calculated as the difference between the third quartile (Q3) and the first quartile (Q1). It represents the range of the middle 50% of the data.

Front

How do you calculate the range of a data set?

Back

To calculate the range, subtract the smallest value in the data set from the largest value. Range = Maximum value - Minimum value.

Front

What is the formula for finding the IQR?

Back

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

Front

Given the data set 16, 28, 6, 19, 21, 15, 22, 33, 17, what is the range?

Back

The range is 27.

Front

Calculate the range of the following data set: 2, 5, 8, 3, 13, 5.

Back

The range is 11.

Front

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

Back

A small IQR indicates that the middle 50% of the data points are close together, suggesting less variability in the data.

Front

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

Back

A large IQR indicates that the middle 50% of the data points are spread out, suggesting more variability in the data.

Front

Find the IQR of the data set: 20, 22, 25, 29, 31.

Back

The IQR is 9.

Front

If the range of a data set is 12 years, and the oldest age is 15, what is the youngest age?

Back

The youngest age is 3.

Front

What is the mode of the following data set: 3, 3, 0, 2, 2, 2, 5, 5, 8, 4?

Back

The mode is 2.