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Helga [31]
3 years ago
15

What is the variance?

Mathematics
1 answer:
kotegsom [21]3 years ago
8 0

Answer:

Variance is the squared deviation and deviation is the difference of observed value from other values

Step-by-step explanation:

Variance is the squared deviation and deviation is the difference of observed value from other values

variance=\text({standard deviation})^2

Variance=\sum\frac{(x-\mu)^2}{N}

Where, \mu=\text{mean},N=\text{Number of sample space}


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I need help pleaseeeee Prove that: 12^13–12^12+12^11 is divisible by 7 and 19. BTW in format ______*7*19 :D
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Simplifying

(20m + 3) + -1(7m + -5) = 0

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Remove parenthesis around (3 + 20m)

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Reorder the terms:

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3 + 20m + (-5 * -1 + 7m * -1) = 0

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8 + 20m + -7m = 0

Combine like terms: 20m + -7m = 13m

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Solving

8 + 13m = 0

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '-8' to each side of the equation.

8 + -8 + 13m = 0 + -8

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13m = 0 + -8

Combine like terms: 0 + -8 = -8

13m = -8

Divide each side by '13'.

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Simplifying

m = -0.6153846154Step-by-step explanation:

4 0
3 years ago
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Answer:

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Step-by-step explanation:

One rule of an irrational number is that it cannot be written as an whole fraction, since the other two are fractions, the last must be irrational.

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2 years ago
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