4.1 Measures of Central Tendency

Front

What is the median?

Back

The middle number in an ordered set of data.

Front

Find the median of the following data set: 3, 5, 7, 4, 3, 1.

Back

3.5

Front

If you score 76, 85, 97, and 83 on your math tests, what would your median score be?

Back

84

Front

What is the mode?

Back

The value that occurs the most often in a data set.

Front

Find the mode of the following data set: 87.1, 87.6, 86.9, 87.0, 87.5, 87.2.

Back

There isn't one.

Front

What is the mean?

Back

The sum of all the numbers in a data set divided by the size of the data set.

Front

Calculate the mean of the following numbers: 10, 20, 30, 40, 50.

Back

30

Front

What is the range of a data set?

Back

The difference between the greatest and the least elements in the data set.

Front

Find the range of the following data set: 5, 10, 15, 20, 25.

Back

20.

Front

What is a data set?

Back

A collection of numbers or values that can be analyzed.