9;9;9
Mean = sum of scores / number of scores
= 9+9+9 / 3
= 27 / 3
= 9
another example is 7, 9, 11
8, 9, 10 etc
even: 7, 8, 12
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The concept of a mean is simple. If you are looking at a series of 3 numbers, lets just say 2, 7, & 9, and you have to find the mean, here's how:Add up all of the numbers, (2+7+9=18)Divide by the number of numbers (In this case the number of numbers is 3, so you have to divide by 3. So 18 ÷ 3 = 6, so the mean is six.)
This is Simple Too work out the mean you add the numbers together ( 3+2+9+7=21) Then simply divde that number by the amount of numbers you have added together ( 21dividedby4=5) Your awsner is 5
To find mean, you add up all of your data and then divide by how many numbers there are. Mean is the same thing as average.1+3+5+7+9 = 2525 divided by 5 (the number of numbers) equals 5. The average or mean of this set of data is 5.
3 and 9.
You find the mean of negative numbers the same way you find the mean of any numbers. You add them up and then you divide by the number of numbers. An example, using -3, -4, -6, and -9. The sum is -22. N is 4. The mean is -5.5.