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Tanzania [10]
4 years ago
8

How do you find standard deviation?

Mathematics
1 answer:
Mila [183]4 years ago
3 0
You first work out the mean then for each number subtract the mean and square the result then work out the mean of those squared differences and take the square rot of that and you're done :)
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5 0
4 years ago
Look down below for question
dusya [7]
So x=x
and y=pounds
when x=0, y=64
when x=1, y=63.1
to find slope, (y1-y2)/(x1-x2)=(64-63.1)/(0-1)=0.9/-1=-0.9=slope
y=-0.9x+b
subsitute
64=-0.9(0)+b
b=64
y=-0.9+64
so int 2001, x=11
y=-0.9(11)+64
y=-9.9+64
y=54.1
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3 years ago
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3 years ago
Read 2 more answers
Data analysis and probability
zloy xaker [14]

Answer:

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Step-by-step explanation:

there are 12 students. you and your friend are 2 of the 12. so it would be a 2:12 chance that you or your friend would get picked. unless if you simplify which then it would be a 1:6 chance that either of you would get picked.

4 0
3 years ago
Write the augmented matrix for the following system of equations.<br> x - 2 = 0<br> 2y = 4 - 2
Kisachek [45]

9514 1404 393

Answer:

  \left[\begin{array}{cc|c}1&0&2\\0&2&2\end{array}\right]

Step-by-step explanation:

The system of equations can be written in standard form as ...

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The augmented matrix representation of these is ...

  \left[\begin{array}{cc|c}1&0&2\\0&2&2\end{array}\right]

8 0
3 years ago
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