Algebra Chapter4.5, Statistics

Front

What is the mean in statistics?

Back

The mean is the average of a set of numbers, calculated by adding all the values together and dividing by the number of values.

Front

How do you calculate the median?

Back

To find the median, arrange the numbers in order and identify the middle value. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is a box plot?

Back

A box plot is a graphical representation of data that shows the distribution through five summary statistics: minimum, first quartile, median, third quartile, and maximum.

Front

What does it mean for data to be qualitative?

Back

Qualitative data describes characteristics or qualities that cannot be measured numerically, such as colors, names, or labels.

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

How do you find the mode of a data set?

Back

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

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100, often used to compare proportions.

Front

How do you interpret a box plot?

Back

A box plot shows the spread and skewness of data, indicating the median, quartiles, and potential outliers.

Front

What is the difference between mean and median?

Back

The mean is the average of all values, while the median is the middle value when data is ordered. The mean can be affected by outliers, while the median is more robust.

Front

What is a frequency distribution?

Back

A frequency distribution is a summary of how often each value occurs in a data set.