Algebra 1 Statistics Review

Front

What is the median in a data set?

Back

The median is the middle value when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the mode in a data set?

Back

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

Front

How do you calculate the mean of a set of numbers?

Back

To calculate the mean, add all the numbers together and then divide by the total number of values.

Front

What is the range of a data set?

Back

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

Front

What is an outlier in a data set?

Back

An outlier is a value that is much higher or much lower than the other values in a set of data.

Front

What percentage of data is considered to be within one standard deviation of the mean in a normal distribution?

Back

Approximately 68% of the data falls within one standard deviation of the mean in a normal distribution.

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots representing the frequency of data points.

Front

How do you find the percentage of data within a certain range?

Back

To find the percentage of data within a certain range, divide the number of data points in that range by the total number of data points, then multiply by 100.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data consists of numerical values that can be measured.

Front

What is a box plot?

Back

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