Algebra 1 Statistics Review

Front

What is the mode?

Back

The mode is the value that occurs the most in a data set.

Front

What is the interquartile range (IQR)?

Back

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

Front

What does the median represent in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest.

Front

What is the range of a data set?

Back

The range is the difference between the largest and smallest values in the data set.

Front

What is standard deviation?

Back

Standard deviation is a measure of how spread out the numbers in a data set are.

Front

How do you calculate the mean of a data set?

Back

To calculate the mean, add all the numbers together and divide by the total count of numbers.

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that shows the median, quartiles, and any outliers.

Front

What is the first quartile (Q1)?

Back

The first quartile is the median of the lower half of a data set.

Front

What is the third quartile (Q3)?

Back

The third quartile is the median of the upper half of a data set.

Front

What does it mean if two data sets have the same interquartile range?

Back

It means that the spread of the middle 50% of the data is the same in both data sets.