IQR

Front

What does IQR stand for in statistics?

Back

IQR stands for Interquartile Range.

Front

How is the IQR calculated?

Back

The IQR is calculated as Q3 (the third quartile) minus Q1 (the first quartile).

Front

What is the first step in finding the median of a data set?

Back

The first step is to order the numbers from least to greatest.

Front

What is the median (Q2) of the data set: 4, 5, 6, 8, 9, 10, 11?

Back

The median (Q2) is 8.

Front

What are the quartiles Q1, Q2, and Q3 of the data set: 4, 5, 6, 8, 9, 10, 11?

Back

Q1: 5, Q2: 8, Q3: 10.

Front

What is the formula for calculating the range of a data set?

Back

The range is calculated as the maximum value minus the minimum value.

Front

What is the range of the data set: 4, 5, 6, 8, 9, 10, 11?

Back

The range is 7.

Front

What is the significance of the IQR in statistics?

Back

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

Front

How do you find Q1 in a data set?

Back

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

Front

How do you find Q3 in a data set?

Back

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