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3 years ago

True or False? The sum of the differences is never zero for any distribution consisting of n observations.

Mathematics

2 answers:

Otrada [13]3 years ago

8 0

Answer: False.

Step-by-step explanation:

The zero-sum property of the difference between the data values and the mean says that the sum of the difference between each value of a variable $a_i$ and the mean value A is equal to zero.

Hence, the given statement "The sum of the differences is never zero for any distribution consisting of n observations." is a false statement.

Nat2105 [25]3 years ago

6 0

I think the answer is false

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Step-by-step explanation:

We know that the perimeter is 24 cm, and the length is 3 cm greater than the width. We know that the perimeter = l*w. This info gives us an equation:

24 = (x + 3)*2 + x * 2. The 24 is the perimeter, and x is the width, so l is x + 3. Now we just have to solve for x.

24 = (x + 3)*2 + x * 2 | Simplify the Parenthesis

24 = 2x + 6 + x * 2 | Subtract 6 from both sides

18 = 2x + x * 2 | x * 2 is 2x

18 = 2x + 2x | 2x + 2x = 4x

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24 = 7.5*2 + 4.5*2, 24 = 15 + 9, 24 = 24.

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Step-by-step explanation:

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