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Leto [7]
4 years ago
14

What is the name of the method for drawing a trend line for the data in a scatterplot in which an oval is drawn around all the p

oints in the scatterplot except the outliers?
a.the oval method

b.the divide-center method

c.the area method

d.the regression calculator method


ty if you answer! :3
Mathematics
2 answers:
gogolik [260]4 years ago
7 0

Answer:

c.the area method

Step-by-step explanation:

A scatterplot is a plotting of data that represents the relationship between the two variables that should be numerical in nature. The data points i.e to be shown in a horizontal and vertical axis represent that how much one variable affected by another variable.

In the area method, we plot a data and then draw a shape which can be in oval but it does not include the outliers but the other methods like oval method, divide center method, regression calculator includes the outliers

Therefore the option c is correct

riadik2000 [5.3K]4 years ago
3 0

Answer:

c.the area method

Step-by-step explanation:

c.the area method c.the area method c.the area method c.the area methodc.the area methodc.the area methodc.the area method c.the area method c.the area method c.the area method   c.the area method  c.the area method

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3 years ago
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Perform the indicated operation to write given polynomial in standard form: (2x^3 − 6x^2 − 7x − 2) +(x^3 +x^2 +6x − 12)
Kipish [7]

Answer:

\left(2x^3-6x^2-7x-2\right)+\left(x^3+x^2+6x-12\right)=3x^3-5x^2-x-14

Step-by-step explanation:

To add the polynomials

Remove parentheses:

\left(2x^3-6x^2-7x-2\right)+\left(x^3+x^2+6x-12\right)=2x^3-6x^2-7x-2+x^3+x^2+6x-12

Group like terms:

=2x^3+x^3-6x^2+x^2-7x+6x-2-12

Add similar elements:

=3x^3-6x^2+x^2-7x+6x-2-12\\=3x^3-5x^2-7x+6x-2-12\\=3x^3-5x^2-x-2-12\\=3x^3-5x^2-x-14

The Standard Form for writing down a polynomial is to put the terms with the highest degree first,its term of 2nd highest is 2nd etc..

In our case the standard form is  

\left(2x^3-6x^2-7x-2\right)+\left(x^3+x^2+6x-12\right)=3x^3-5x^2-x-14

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3 years ago
Andrew is 50 years younger than Natasha. 6 years ago, Natasha's age was 3 times Andrew's age. How old is Andrew now?
jok3333 [9.3K]

Natasha's age is 81 years and Andrew's age is 31 years

Step-by-step explanation:

  • Step 1: From the given details, let the age of Natasha be x, then age of Andrew is x - 50.
  • Step 2: Form equations out of their details of ages 6 years ago.

⇒ x - 6 = 3(x - 50 - 6)

⇒ x - 6 = 3(x - 56)

⇒ x - 6 = 3x - 168

⇒ 2x = 162

⇒ x = 81

  • Step 3: Calculate Andrew's age

x - 50 = 81 - 50 = 31

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