Which phrase best describes a scatter plot in which the variables are correlated with r = 0.17?

1 answer:

Yanka [14]3 years ago

4 0

Answer: weak positive association

Step-by-step explanation:

We know that the correlation coefficient 'r' measures the strength and direction of a linear relationship between two variables on a scatterplot.

Since the values of 'r' between 0 and 0.3 (0 and -0.3) indicate a weak positive (negative) linear relationship .

Therefore, the phrase best describes a scatter plot in which the variables are correlated with r = 0.17 is "weak positive association".

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skad [1K]

Answer:

$\displaystyle d = 4\sqrt{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Algebra II

Step-by-step explanation:

Step 1: Define

Point (-5, 6) → x₁ = -5, y₁ = 6

Point (3, 2) → x₂ = 3, y₂ = 2

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formulas]: $\displaystyle d = \sqrt{(3+5)^2+(2-6)^2}$
[Distance] [√Radical] (Parenthesis) Add/Subtract: $\displaystyle d = \sqrt{(8)^2+(-4)^2}$
[Distance] [√Radical] Evaluate exponents: $\displaystyle d = \sqrt{64+16}$
[Distance] [√Radical] Add: $\displaystyle d = \sqrt{80}$
[Distance] [√Radical] Simplify: $\displaystyle d = 4\sqrt{5}$