Mean, Median, Mode, Range

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 total count of numbers.

Front

What is the median?

Back

The median is the middle value in a list of numbers sorted in ascending order. If there is an even number of values, the median is 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

What is the range?

Back

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

Front

How do you find the mean of a data set?

Back

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

Front

How do you find the median of a data set with an odd number of values?

Back

Sort the numbers in ascending order and select the middle number.

Front

How do you find the median of a data set with an even number of values?

Back

Sort the numbers in ascending order and calculate the average of the two middle numbers.

Front

Can a data set have more than one mode?

Back

Yes, a data set can have more than one mode if multiple numbers appear with the same highest frequency.

Front

What does it mean if a data set has no mode?

Back

If no number repeats, the data set is said to have no mode.

Front

If the scores are 60, 70, 80, 90, and 100, what is the mean?

Back

The mean is (60 + 70 + 80 + 90 + 100) / 5 = 80.