873 Math Blog

Mean
the mean is when you have a set of raw data and you arrange them into ascending order.
After you add all the numbers in the set of data and you divide it by how much numbers there are.
an outlier will mess up the mean.


Median
the median is the middle number of a data set after being put to ascending order.
when you have to middle numbers you add up the numbers then divide it by two.


Mode
put the numbers in ascending order
the mode is the most common number in a data set.
you can have more than one mode in a data set.


Range
put the numbers in ascending order
subtract the smallest number from the biggest number


Here Is a video explaining mean, median, and mode

Median - the number in the middle of a set of data
To find the median:
1. arrange in ascending order (IMPORTANT)
2. cross out one piece of data from the left, then the right, then the left, and so on, until you reach the middle number
3. the final result is the median
if you have an even number of data, you'll end up with two middle numbers, so you need to find the middle of those two numbers (sum of two numbers, divided by 2)
if you have an outlier, use the median, instead of the mean, to find the average


Mode - the number in a set of data, that appears the most
To find the mode:
1. arrange in ascending order
2. find the number that appears the most
3. the final result is the mode
sometimes there could be MORE than one mode
sometimes there is NO mode


Range - the difference between the greatest and least piece of data in a set
To find the range:
1. arrange in ascending order
2. find the greatest and least piece of data
3. subtract the least piece of data from the greatest piece of data
4. the final result is the range



Here is a video, that shows how to find the mean, median, and mode:





Click here to play a game, that could help you remember how to find the mean, median, and mode.

Mean

• Sum of all data divided by number of data set.
• To have a purpose or intention.
• It's an average.
• Method by which something is done.

Median

• Ascending numerical order.
• found the middle number.
• The middle number.

Mode

• Most common number.
• It is possible to have set of data with no mode.
• A set of data can be bimodal.
  

Range

• The largest data subtract the smallest data.
• A set of value a number can have.
• Whole set of related.
  

MMM

Mean

• Put raw data into ascending numerical order.
• Making a set of different numbers the same.

Median

• Put raw data into ascending numerical order.
• Is middle number in a set arrange from least to greatest.
• If two numbers add up and divide by 3.
• If there is an outlier the median is the best way to find the average.Mode

• Put raw data into ascending numerical order.
• The most common data.
• You can have more than 1 mode.
• You can have no mode.Range

• Put raw data into ascending numerical order.
• Largest data minus the smallest data.

mean

• put raw data into ascending order.
  


• sum of all data, devided by the number of data



• if you have an outlier it changes the mean
  

median

• put raw data into ascending order
  


• find the middle number
  


• its the best way to find the average of the data if there is an outlier
  


• if you have two middle number you have to add the two middle number and devide it by 2
  

mode

• put raw data into ascending order



• find the most occuring number in the data
  


• you can have more than one mode



• you can have no mode at all

range

• put raw data into ascending order
  


• largest data minus the smallest data



• if there is a large range check if the mean is the best way to find the average
  

Here is a great video representing mean,median and mode.

Mean

• Put data into ascending order


• add all the numbers together
  
• divide by how many numbers there are
  

e.g.



33/5=6.6

Median

put data into ascending order

find the middle number

if there are two middle numbers add them up and divide by two

e.g.

Mode

• put data into ascending order


• most common number
  
• you can have more than one mode


• you can have no mode

e.g.

Range

put data into ascending order

• largest number minus the smallest number

e.g.

Here Is a video explaining mean, median, and mode