Mode, Median, Mean, and Range

Front

What is the mode in a set of numbers?

Back

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

Front

How do you find the median of a data set?

Back

To find the median, first sort the data from least to greatest, then identify the middle number.

Front

What is the mean of a set of numbers?

Back

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

Front

What is the range of a data set?

Back

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

Front

If the numbers are 12, 10, 10, 10, 13, 12, 11, 13, 10, what is the mode?

Back

The mode is 10.

Front

What is the first step to find the median?

Back

The first step is to sort the data from least to greatest.

Front

How do you calculate the mean of 28, 18, 19, 18, 17?

Back

Add the numbers (28 + 18 + 19 + 18 + 17 = 100) and divide by 5. The mean is 20.

Front

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

Back

It means that no number appears more than once in the data set.

Front

What is the formula to find the mean?

Back

Mean = (Sum of all items) / (Number of items in the set).

Front

In the data set 5, 7, 3, 9, what is the range?

Back

The range is 9 - 3 = 6.