We want to find the mean of two elements in a set, given that we know the other elements of the set and the mean of the whole set.
The answer is: -490
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For a set with N elements {x₁, x₂, ..., xₙ} the mean is given by:
Here we know that:
- The mean of the set is 0.
- The set has 1000 elements.
- 998 of these elements are ones, the other two are A and B.
We want to find the mean of the values of A and B.
First, we can start by writing the equation for the mean:
We can rewrite this as:
And we have 998 ones, then:
Now we have B isolated.
With this, the mean of A and B can be written as:
So we can conclude that the mean of the other two numbers is -490.
If you want to learn more, you can read:
brainly.com/question/22871228
You worked 5:15. From 6:45 to 12 is 5:15 then as you finish at 12:30 you just have to add 30 minutes to 5:15
Hello!
3x - 32 = -7x + 28
-32 - 28 = -7x - 3x
-60 = -10x
-6 = -x
6 = x
x = 6
I hope this helps you! Have a lovely day!
- Mal
Hello There!
-The Numbers Ordered From Least To Greatest-
-59 -41 -23 -11
The closer the number is to zero, it is going to be a bigger number than a number far away from zero.
<span>3.14159265359 and lots more.</span>