Measure of central tendency

Measures of central tendency:

Mean: The sum of a set of data divided by the number of data.

Median: The middle value, or the mean of the middle two values, when the data is arranged in numerical order.

 

Mode: The number that appears the MOST.
It is possible to have more than one mode. It is possible to have no mode.  If there is no mode-write "NO MODE”

 

Geogebra

What is Geogebra?

- Is a Dynamic Mathematics Software in one easy to use package for learning and teaching at all levels of education. it joins interactive geometry, algebra, tables, graphic, calculus and statistics.

For what you use it?

-  Geogebra was created to help students and people gain a better understanding of mathematics. You can use it for active and oriental teaching.

How to make a polygon in Geogebra?

http://m.youtube.com/watch?v=qwgUB5GFD3k

Click the link above