Thursday, November 21, 2013

Mean, Median, Mode Math

We are all about data management lately!  We completed a "databet" and I was amazed at how much vocabulary you already know (we have a a minimum of one word for each letter!).  Today we started talking about measures of central tendency.  To help us remember which is which (who decided they should all start with the letter m?!), we watched a video and listened to a song about it.  Check them out below to help you at home!  Just remember:

"MO"de: is the "MO"st popular (or think of the French expression "à la mode" which means to be in fashion.  Keep in mind that data does not always have a mode.

Median: is the middle(sing it with me now!).  Don't forget to order those numbers first! When the totals of the list are odd, the median is the middle entry.  When the totals of the list are even, the median is equal to the sum of the two middle numbers divided by two. Be sure to remember the odd and even rule.

Mean: is the average.  Add together all of the data and then divide it by the sum of the total number of data there are.  Mme Charles sure is mean to make us calculate the mean of all this data!
 
Range: is the difference between the largest and smallest values.


Wait til you see tomorrow's activity for measures of central tendency!  You're gonna love it!

PS  Don't forget to go under Math links - Mean, median and mode and test your skills!

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