How to: Calculate Mode, Median and Mean Averages ppt

How to: Calculate Mode, Median and Mean
Averages.
Robyn Pearce.
Hello, my name is Robyn Pearce and I will be showing
you how to calculate the mode, median and mean averages of
data. I hope this is very helpful, and will remind you how to
calculate Mode, Median and Mean averages if you ever forget.
MODE
To calculate the Mode average of data, find the amount
that appears the most. This is the Mode average. For example,
the mode of these numbers; 5,6,2,2,3 is 2, as it occurs the most.
To remember what Mode is, just say “Mo for Mode, Mo
for Most.”.
EXERCISES FOR MODE
Try these when you need a bit of practice!
Find the Mode average of:
1. 89,89,45,45,45,32
2. 56,23,32,23,23,23
3. 134,123,123,156,156,123
MEDIAN
To calculate the Median average of a set of data, order all
of the amounts from smallest to largest. Then, select the amount
in the centre. (Here, the middle amount is underlined for you.)
For example, the Median amount of; 2,2,3,5,6 is 3. But, if
you have another number, to make an even number, you have
two numbers in the middle! To find the Median then, the
formula is 2Ma÷2=Me. In other words, add the two middle
amounts together and divide the result by 2 to get the Median
average.
EXERCISES FOR MEDIAN
Try these for practice!

Find the Median average of:
1. 2,4,7,7,6
2. 3,11,43,21,56,4
3. 4,23,43,43,26
MEAN
This is the hardest average to find out of the 3 mentioned
here. It involves dividing. The formula for the Mean average is:
Ta÷Na=Ma. In other words, the total of the amounts divided by
the number of amounts you have equals the Mean average.
For example, the Mean average of 2,4,3,5,7 would be 4.2,
as the total of all of the amounts is 21, and there are 5 different
amounts. So you would divide 21 by 5, resulting in 4.2 being the
Mean average. I find this easier to calculate with a calculator.
This can result in getting a recurring decimal number like
4.6666666 or 3.22222222 etc., so if this happens, write 4.666r or
3.222r etc.
EXERCISES FOR MEAN
Try these for practice!
Find the Mean average of:
1. 4,3,67,23,2
2. 34,25,14,17,46,32
3. 456,231,253,687
Thank you for reading this manual on how to find averages of
data. I personally wish you good luck when using these
techniques. Remember to check once you’ve used them!
Thank you,
Robyn Pearce.