Measures of Variation

Front

What is Measures of Variation?

Back

Measures of Variation are statistical tools used to describe the distribution and spread of data in a dataset.

Front

What is the first step in finding the median of a dataset?

Back

Arrange the numbers from least to greatest.

Front

How do you calculate the Interquartile Range (IQR)?

Back

IQR is calculated by subtracting the first quartile (Q1) from the third quartile (Q3): IQR = Q3 - Q1.

Front

What five items are found when calculating Measures of Variation?

Back

Median, first quartile (Q1), third quartile (Q3), interquartile range (IQR), and range.

Front

What is an outlier?

Back

An outlier is a data point that is significantly different from the other data points in a dataset.

Front

What does the range of a dataset represent?

Back

The range represents the difference between the highest and lowest values in a dataset.

Front

What is the median?

Back

The median is the middle value of a dataset when the numbers are arranged in order.

Front

How do you find the upper quartile (Q3)?

Back

Q3 is the median of the upper half of the dataset.

Front

What is the lower quartile (Q1)?

Back

Q1 is the median of the lower half of the dataset.

Front

What is the formula for calculating the range?

Back

Range = Maximum value - Minimum value.