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strojnjashka [21]
3 years ago
8

Find the distance between the two points 4,1 and -3,-2. Show your work​

Mathematics
1 answer:
Veronika [31]3 years ago
3 0

Answer:

The distance between two points is √58 or 7.61.

Step-by-step explanation:

In the question we need to find the distance between two points 4,1 and -3,-2 given.

Distance between two points can be found using the formula:

d(P1,P2) = \sqrt{(x_{2}-x_{1})^2 + (y_{2}-y_{1})^2}

Putting the given points in the formula we get,

x₂ = -3, x₁ = 4, y₂= -2, y₁= 1

=\sqrt{(-3-(4))^2 + (-2-(1))^2} \\=\sqrt{(-3-4)^2 + (-2-1)^2}\\=\sqrt{(-7)^2 + (-3)^2}\\=\sqrt{49 + 9}\\=\sqrt{58}\\=7.61

So, the distance between two points is √58 or 7.61.

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Answer:

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Step-by-step explanation:

Standard deviation of a population is defined as:

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The standard deviation of a sample is defined as:

s² = ∑(xᵢ − x)² / (n - 1)

It's not clear which one we have, so let's calculate both.

First, we must find the mean.

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Now we find the squares of the differences:

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Divide by n:

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σ = √10

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