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3 years ago

Compare standard deviation and residual analysis Describe when/how each are used.

Mathematics

1 answer:

Alexandra [31]3 years ago

6 0

Answer:

standard deviation is a quantity calculated to indicate the extent of deviation for a group as a whole.

Residual analysis is used to assess the appropriateness of a linear regression model by defining residuals and examining the residual plot graphs.

Step-by-step explanation:

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2 (r - 3) - 5(r + 2)

DochEvi [55]

Answer:

-3r -16

Step-by-step explanation:

2 (r - 3) - 5(r + 2)

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2r-6 - 5r - 10

Combine like terms

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3 years ago

Please help I’m unsure

Delicious77 [7]

Step-by-step explanation:

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2 years ago

F/2-22<48, I want to know what f equals. Worth 30 points.

yarga [219]

$\frac{F}{2} -22\ \textless \ 48 \\ \frac{F}{2} \ \textless \ 48+22 \\ \frac{F}{2} \ \textless \ 70\ \ \ \ \ \ \ \ \ |*2 \\ F\ \textless \ 140 \\ \\ \boxed {F\in(-\infty\ ;\ 140)} \\ \\ \\ \\ \\ \\ \underline {\underline{Regards\ M.Y.}}$

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4 years ago

A rectangle has a perimeter of 103.6 inches and a base of 39 inches. What is the height?

rusak2 [61]

Answer:

12.8 IN.

Step-by-step explanation:

So, what exactly is perimeter?

Perimeter= 2L+ 2W

In this question we were given the length.ie.Base and the perimeter itself.

●Length is 39 In.

●Perimeter is 103.6 In.

●We don't know the width.

But, as per given the question, we know that;

1 length = 39 In.

2 lengths= 78 In.

Now that we know the total length we can find the total width.

See as follows,

103.6 - 78= 25.6

2 widths= 25.6

1 width= 25.6÷2

=12.8 In

5 0

3 years ago

Select the correct answer.

andrew-mc [135]

Answer:

OPTION C

Step-by-step explanation:

We have the following rules:

$\sqrt[a]{x} = x^{\frac{1}{a}$ and

$x^a . x^b = x^{a + b}$

OPTION A: $x \sqrt[7]{x}$

= $x . x^{\frac{1}{7}$

= $x^{1 + \frac{1}{7}$

$= x^{\frac{8}{7}$ $\ne x^{\frac{9}{7}$

So, it can be eliminated.

OPTION B: $\bigg ( \frac{1}{\sqrt[7]{x}} \bigg )^9$

= $\bigg ( \frac{1}{x^{\frac{1}{7}}} \bigg )^9$

= $\bigg ( x^ {\frac{-1}{7}} \bigg )^9$

= $x^{\frac{-9}{7}}$

So, this option is also eliminated.

OPTION C: $x . \sqrt[7]{x}$

= $x . x^{\frac{1}{7}}$

= $x^{1 + \frac{1}{7}}$

= $x^{\frac{9}{7}}$

So, OPTION C is the answer.

5 0

3 years ago