All categories

3 years ago

Which phrase best describes a scatter plot in which the variables are correlated with r = 0.79?

2 answers:

7 0

"Weak positive association" is the one phrase among the following choices given in the question that best describes a scatter plot in which the variables are correlated with r = 0.79. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer helped you.

Inessa05 [86]3 years ago

3 0

Answer: D.) strong positive association

Step-by-step explanation:

The given correlation coefficient $r = 0.79$

Since its polarity is positive then it must represent a positive association.

We know that if the r value is closer to +1 or -1 then it tells that there is a stronger linear relationship between the two variables.

Also it lies between 0.5 to 1 i.e. 0.5 < 0.79 < 1, therefore it must represent a strong positive association between the two variables.

You might be interested in

Cot^4θ-4cot^2θ-5=0 solve for θ

stich3 [128]

$\cot^4\theta-4\cot^2\theta-5=(\cot^2\theta-5)(\cot^2\theta+1)=0$

$\cot^2\theta-5=0\implies\cot^2\theta=5\implies\cot\theta=\pm\sqrt5$

Recall that $\cot\theta=\cot(\theta+\pi)$ , which is to say $\cot x$ has period $\pi$ . This in turn means that $\cot\theta=0$ will have the same solutions as $\cot(\theta+n\pi)=0$ for any integer $n$ . So the general solution to the first case is

$\cot\theta=\pm\sqrt5\implies\theta=\cot^{-1}(\pm\sqrt5)+n\pi$

where $n$ is any integer.

On the other hand,

$\cot^2\theta+1=0\implies\cot^2\theta=-1$

but $x^2\ge0$ for any value of $x$ , so this equation has no (real) solutions for $\theta$ .

4 0

3 years ago

The length of a rectangle is 14 feet. The width is 6 feet.

Alina [70]

C, 40 feet. (14x2)+(6x2)=28+12=40.

8 0

4 years ago

Write 0.0000953 in scientific notation.

irina [24]

Answer: 9.53x10^-5

Step-by-step explanation:

Scientific notation means the coefficient must be between 0 and 10 and preferably without zeros because they are implied. move the decimal 5 times to the right to get 9.53 as your coeifficient and state the movement of the decimal

4 0

3 years ago

Read 2 more answers

What is cos theta of tan theta= 8/5?

snow_lady [41]

I'd suggest you write:

":What is cos theta IF tan theta= 8/5?

tan theta = opp / adj = 8 / 5, so we know that opp = 8 and adj = 5. Then the length of the hypotenuse is sqrt(8^2+5^2) = 9.43.

Thus, the cosine of theta / cosine of this angle is

adj 5
----- = ---------- , or about 0.53.
hyp 9.43

7 0

4 years ago

Read 2 more answers

A band wants to create a cd of their last concert. To creat the CDs, the cost will be $350 advertisement fee plus $3 per CD.Writ

elena-14-01-66 [18.8K]

Answer: $350 +$3x=$1225

Step-by-step explanation:

8 0

3 years ago