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Crazy boy [7]
1 year ago
8

Find the difference: -2-6

Mathematics
1 answer:
Natasha2012 [34]1 year ago
4 0
The difference is -8. Why? Well, see below for the proper explanation!

I was taught how to solve these kinds of problems easily! Whenever you are subtracting a negative by a positive, you can think of it as using the two minus signs as addition and keeping the result negative. An example of this would be as follows:

Let’s take the problem -7 - 3.

See the two minus signs (the one in -7 and the one that shows we are subtracting)? Well, these two signs can be put together to form an addition sign (+), which shows that we are adding these two numbers together.

7 + 3 = 10

Now that we added the numbers, we can just add the negative sign back on to show that -7 - 3 = -10.

A simple way to remember this is that -7 + 3 would give us -4. This makes things easier to remember because subtraction is the inverse operation of addition, and since adding a negative and positive results in numbers that go more toward the origin and positive numbers side of a number line, we can just do the inverse operation to find that subtracting a negative by a positive number results in numbers moving to the left on a number line, which resembles less and farther from the origin.

Your final answer: -2 - 6 = -8. If you need extra help, let me know and I will gladly assist you.
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Now subtract the mean from each data value. Apply the absolute value to ensure the difference is never negative

|22 - 26.375| = 4.375
|16 - 26.375| = 10.375
|39 - 26.375| = 12.625
|35 - 26.375| = 8.625
|19 - 26.375| = 7.375
|34 - 26.375| = 7.625
|20 - 26.375| = 6.375
|26 - 26.375| = 0.375

Add up those results
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The mean absolute deviation of the prices is 7.21875
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