Algebra 1 Statistics Review

Front

What is the median in a data set?

Back

The median is the middle number in a sorted list of numbers.

Front

How do you find the median of a data set?

Back

To find the median, first sort the data from least to greatest, then identify the middle number.

Front

What does it mean if a data set has a low standard deviation?

Back

A low standard deviation means that the data points are close to the mean.

Front

What does it mean if a data set has a high standard deviation?

Back

A high standard deviation indicates that the data points are spread out over a wider range of values.

Front

What is the range of a data set?

Back

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

Front

What is a mode in a data set?

Back

The mode is the number that appears most frequently in a data set.

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 number of values.

Front

What is a box plot?

Back

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

Front

What is a histogram?

Back

A histogram is a graphical representation of the distribution of numerical data, showing the frequency of data points in intervals.

Front

What is the interquartile range (IQR)?

Back

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