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LekaFEV [45]
3 years ago
12

Why are bars of the histogram all the same width?

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
3 0
The widths of the bars are equal to ensure that numbers aren't represented improperly. If a bar was wider than another that was the same height, it could be misinterpreted as being larger. 
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The length of a rectangle is 7 cm more than 4 times the width. If the perimeter of the rectangle is 44 cm, what are its dimensio
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Answer:

3 by 19

Step-by-step explanation:

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On a factory floor, 65 out of every 140 toy robots is defective. What percent of the toy robots are defective? Round your answer
tester [92]

Answer:

65/140

as a percentage is 46.43

hundredth rounding

46.4

Step-by-step explanation:

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2 years ago
If each data is increased by a constant K then find it's mean ?? answer fast pleaseeeeeeeeeee​
MArishka [77]

Answer:

The mean is also increased by the constant k.

Step-by-step explanation:

Suppose that we have the set of N elements

{x₁, x₂, x₃, ..., xₙ}

The mean of this set is:

M = (x₁ + x₂ + x₃ + ... + xₙ)/N

Now if we increase each element of our set by a constant K, then our new set is:

{ (x₁ + k), (x₂ + k), ..., (xₙ + k)}

The mean of this set is:

M' = ( (x₁ + k) + (x₂ + k) + ... + (xₙ + k))/N

M' = (x₁ + x₂ + ... + xₙ + N*k)/N

We can rewrite this as:

M' = (x₁ + x₂ + ... + xₙ)/N + (k*N)/N

and  (x₁ + x₂ + ... + xₙ)/N was the original mean, then:

M' = M + (k*N)/N

M' = M + k

Then if we increase all the elements by a constant k, the mean is also increased by the same constant k.

6 0
3 years ago
What's is the expression of 36÷9
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Division the answer is 4
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Read 2 more answers
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