Understanding Mean, Median, and Mode

Front

What is the mean?

Back

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

Front

How do you calculate the mean of a data set?

Back

Add all the numbers in the data set and divide by the total number of values.

Front

What is the median?

Back

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

Front

How do you find the median of an odd set of numbers?

Back

Arrange the numbers in order and select the middle number.

Front

How do you find the median of an even set of numbers?

Back

Arrange the numbers in order and calculate the average of the two middle numbers.

Front

What is the mode?

Back

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

Front

How do you identify the mode in a data set?

Back

Count the frequency of each number; the number with the highest frequency is the mode.

Front

What is an outlier?

Back

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

Front

How does an outlier affect the mean?

Back

An outlier can skew the mean, making it higher or lower than the central tendency of the data.

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.