Author:
Emily Kortiz

The objective of this learning packet is to go over measures of central tendencies. We will be learning how to identify the mean, median, and mode of a set of data.

In this packet, we learn the definitions for and learn how to find the:

-Mean

-Median

-Mode

-Central tendencies

We will also be reviewing this concept:

-Average

Tutorial

__ Measures of central tendencies show us where the middle of a set of data lies.__

The three kinds of measures of central tendencies are:

__Mean-__ The total sum of a set of data, divided by how many numbers are in the data set. When someone uses the term average, this is often what they are referring to.

__Median-__ The number in the middle of an ordered data set.

__Mode-__ The mode is the number that occurs most often in the data set.

__Finding Mean__

- Add all the numbers in the data set.
- Divide by the amount of numbers in the data set.

__Finding Median__

- Put all the numbers in the data set in order (can be from smallest to largest, or largest to smallest, it doesn’t matter).
- If there are an odd amount of numbers in the data set, use the number that is the one right in the middle of the data set.
- If there are an even amount of numbers in the data set, add the two middle digits, then divide by two to get the median.

__Finding Mode__

- It’s easier if you put the numbers in order.
- Look to see if there is one number that appears more than the rest of the data set.
- It is possible two numbers might appear and equal amount of times. If that is the case, then they are both the modes.
- Its is also possible that there is no one number that appears more than the rest. If that is the case, then the data set has no mode.