Mean, Median, Mode, Range

Front

What is the mean of a data set?

Back

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

Front

How do you calculate the mean of the data set: 0, 0, 0, 5, 15?

Back

(0 + 0 + 0 + 5 + 15) / 5 = 4.

Front

What is the mode of a data set?

Back

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

Front

What is the mode of the data set: 0, 0, 0, 5, 5, 5, 15?

Back

The mode is 0 AND 5, as both appear most frequently.

Front

What is the range of a data set?

Back

The range is the difference between the largest and smallest numbers in a data set.

Front

What is the range of the data set: 0, 0, 0, 5, 15?

Back

15 - 0 = 15.

Front

How do you find the range of the data set: 10, 8, 20?

Back

20 - 8 = 12.

Front

What is the median of a data set?

Back

The median is the middle number when the numbers are arranged in order.

Front

How do you find the median of the data set: 3, 1, 2?

Back

Arrange the numbers: 1, 2, 3. The median is 2.

Front

What happens if there are two middle numbers in a data set?

Back

If there are two middle numbers, the median is the average of those two numbers.