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Mean= The average, adding all the numbers and then dividing them by the amount of numbers
Median = the middle number when the numbers are listed from smallest to biggest
Mode=Is the number listed the most
Range= the biggest number - the smallest number
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that you need help with?
Consider the set of numbers 80, 90, 90, 100, 85, 90. They could be
math grades, for example.
The MEAN is the arithmetic average, the average you are probably used
to finding for a set of numbers - add up the numbers and divide by how
many there are: (80 + 90 + 90 + 100 + 85 + 90) / 6 = 89 1/6.
The MEDIAN is the number in the middle. In order to find the median,
you have to put the values in order from lowest to highest, then find
the number that is exactly in the middle:
80 85 90 90 90 100
since there is an even number of values, the MEDIAN is
between these two, or it is 90. Notice that there is
exactly the same number of values ABOVE the median as
The MODE is the value that occurs most often. In this case, since
there are 3 90's, the mode is 90. A set of data can have more than one
The RANGE is the difference between the lowest and highest values.
In this case 100 - 80 = 20, so the range is 20. The range tells you
something about how spread out the data are. Data with large ranges
tend to be more spread out.
Are you there?
yah but do you divide after you add
yes you divide after you add you divide it by the number of numbers you've added up. so if you had 20 and 30 you add to 50 and divide by 2 because there are two numbers 20, and 30.