Find the mean of 9, 2, 8, 9, 2 graphically.
What is the sum of the numbers?
To find the mean graphically, we can use a number line.
First, we plot the numbers on a number line:
__ __ 2 __ __ 8 __ __ 9 __ __
1 2 3 4 5
Then, we add up the numbers and divide by the total number of values:
(mean) = (2+2+8+9+9) / 5 = 6
So the mean is 6.
To find the sum of the numbers, we simply add them up:
sum = 9 + 2 + 8 + 9 + 2 = 30
To find the mean of the numbers 9, 2, 8, 9, 2 graphically, you can represent each number as a point on a number line and then find the midpoint of the line segment.
First, plot the points on a number line:
2 2 8 9 9
Next, draw a line connecting the two outermost points (2 and 9). This line represents the sum of the numbers.
2 2 8 9 9
___________
To find the midpoint of the line segment, draw a perpendicular line from the midpoint of the line segment to the number line.
2 2 8 9 9
___________
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The point where the perpendicular line intersects the number line represents the mean of the numbers.
In this case, the midpoint of the line segment falls between the numbers 8 and 9.
Therefore, the mean of the numbers is (8 + 9) / 2 = 17 / 2 = 8.5.
Now to find the sum of the numbers 9, 2, 8, 9, 2, you can simply add them up:
9 + 2 + 8 + 9 + 2 = 30.
So, the sum of the numbers is 30.