Measures of Variation Quick Check

Answer 1

1. What is the range?

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

2. What is the interquartile range (IQR)?

The interquartile range is the difference between the first quartile (Q1) and the third quartile (Q3) of a data set.

3. What is standard deviation?

Standard deviation is a measure of how spread out the values in a data set are. It quantifies the variation or dispersion of a set of values.

4. What is variance?

Variance is a measure of how spread out the values in a data set are. It is the square of the standard deviation.

5. Why are measures of variation important in statistics?

Measures of variation are important in statistics because they help us understand the spread or dispersion of data around the mean. They provide valuable insight into the variability of a data set and can help us make comparisons between different data sets.