Mean Median Mode

Front

What is the mean of a data set?

Back

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

Front

How do you find the median of a data set?

Back

To find the median, first sort the data from least to greatest. If there is an odd number of values, the median is the middle number. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is mode in a data set?

Back

The mode is the number that appears most frequently in a data set. A data set can have one mode, more than one mode, or no mode at all.

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

True or False: A data set can have more than one mode.

Back

True

Front

True or False: To find the median, the data must be sorted from least to greatest first.

Back

True

Front

Calculate the mean of the following numbers: 10, 20, 30.

Back

Mean = (10 + 20 + 30) / 3 = 20.

Front

Find the median of this data set: 3, 1, 4, 2.

Back

First, sort the data: 1, 2, 3, 4. The median is (2 + 3) / 2 = 2.5.

Front

What is the mode of the following data set: 5, 1, 5, 3, 2?

Back

The mode is 5, as it appears most frequently.

Front

Calculate the range of the following numbers: 4, 8, 15, 16, 23, 42.

Back

Range = 42 - 4 = 38.