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Vlad [161]
4 years ago
13

Standard deviation formula

Mathematics
2 answers:
BARSIC [14]4 years ago
7 0

Say we have a bunch of numbers like 9, 2, 5, 4, 12, 7, 8, 11.

To calculate the standard deviation of those numbers:

<span>1. Work out the Mean (the simple average of the numbers)</span>2. Then for each number: subtract the Mean and square the result<span>3. Then work out the mean of those squared differences.</span><span>4. Take the square root of that and we are done!</span>
egoroff_w [7]4 years ago
6 0
I couldnt write it all down so heres a pic

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N/6+2=-8 <br> how do i solve this problem?
inessss [21]
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3 years ago
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8 oranges cost $3.60 How much does it cost for each orange?​
hoa [83]

Answer:

Each orange costs 45 cents

Step-by-step explanation:

3.60 divided by 8 = .45

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Divide and simplify to the form a+bi. 5+6i 5+6i 6+ i (Simplify your answer. Type an integer or a fraction. Type your answer in t
alekssr [168]

Answer:

-\frac{6}{37} + \frac{371}{37}i

Step-by-step explanation:

We need to evaluate \frac{(5+6i)(5+6i)}{6+i}

(5+6i)(5+6i) = (25 + 36i² + 60i) = (25 - 36 + 60i) = -11 + 60i

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Now we rationalize the denominator.

Now, multiplying both the numerator and denominator by (6-i)

\frac{-66 + 11i + 360i - 60i^2}{36 - i^2} = \frac{-66 + 60  + 371i}{37} = \frac{-6 + 371i}{37}

= -\frac{6}{37} + \frac{371}{37}i

Formula used:

(a+b)² = a² + b² + 2ab

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6 0
4 years ago
What is the domain of g (x)=1-2x^2
lord [1]
<span>Given Equation => g(x) = 2x – 1
Now, the problem is we need to find the domain of g.
I believe that all domain are real numbers. Thus, let’s start finding the domain of g

Let’s try -1 as the value of x
=> g(x) = 2x – 1
=> g (-1) = 2 (-1) -1
=> g (-1) = -2 -1
=> g (-1) = -3
Therefore, if the value of x is -1, the domain value of g(x) is -3

Let’s try 2 as value of x
=>=> g(x) = 2x – 1
=> g (2) = 2 (2) -1
=> g (2) = 4 -1
=> g (2) = 3
Therefore, if the value of x is 2, the domain value of g(x) is 2

</span>



8 0
4 years ago
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Rainbow [258]

Answer:

4x+12=120°

X=12-4=120°

X=8=120

X=120/8

X=15

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3 years ago
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