Measures of central Tendency
Add all the numbers together.Divide the sum of all data by the amount of numbers in the set.
1,2,3,4,4,5,6
1+2+3+4+4+5+6=25 25/7=3.57
The mean is 3.57.
Median-
Put the numbers in ascending order.Find the middle number, each number must have a pair except for the middle,unless there is two medians in which case you must add the two together and divide by two.
1,2,3,4,4,5,6
1,2,2,3,4,4,5,6 3+4=7 , 7/2=3.5
The meadian is 3.5
Mode-
The mode is the number that appears the most frequently in a set of data.There can be no mode.
1,2,3,4,5,5
1,2,3,4,5-no mode.
Range-
The largest number divided by the smallest number.
1,2,3,4,70 1-70=69
The range is 69.
This is my video explaining mean,meadian,mode and range.
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