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Nikitich [7]
3 years ago
7

The normal curve shown represents the sampling distribution of a sample mean for sample size n = 25, selected at random from a p

opulation with standard deviation \sigma_xσ x ​ . Which of the following is the best estimate of the standard deviation of the population, \sigma_xσ x ​ ?
Mathematics
1 answer:
Flura [38]3 years ago
6 0

Answer:15

Step-by-step explanation:

Increments along axis are by 15 with 150 in the center.. if you’re looking at the ap classroom graph

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The formula for the perimeter of a rectangle is P=2(l+w). <br><br> Solve for w.
ale4655 [162]

Step-by-step explanation:

Consider the provided equation.

P=2(l+w)P=2(l+w)

We need to solve the equation for I.

Divide both the sides by 2.

{P}{2}=\frac{2(l+w)}{2}2P=22(l+w)

{P}{2}=l+w2P=l+w

Now isolate the variable I.

Subtract w from both side.

\{P}{2}-w=l+w-w2P−w=l+w−w

I{P}{2}-wI=2P−w

The value of the equation for I is I=\frac{P}{2}-wI=2P−w .

Idk but this might help o_o

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3 years ago
In the equation below identify the products CH4 + O2 → CO2 + 2H2O
Ronch [10]

Answer:

Step-by-step explanation:

CH4

carbon and hydrogen (4)

O2

oxygen (2)

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3 years ago
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Answer:

  • Only a factor of 6 was removed from the second term. A factor of 6x should have been removed.
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Step-by-step explanation:

The distributive property lets you apply a multiplier to a group of terms. The entire multiplier is applied to each and every term. When making use of this property to rewrite expressions, one must make sure the rewritten expression is completely equivalent to the original.

... 30x -12xy = 6x·5 -6x·2y = 6x(5 -2y)

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6x(5 -2xy) = 30x -12x^2y ≠ 30x -12xy

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I think this might be help
(-2, 3 )

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