All categories

3 years ago

Please help thank you!

Mathematics

1 answer:

Setler79 [48]3 years ago

7 0

Answer:

(d) WEAK NEGATIVE ASSOCIATION.

Step-by-step explanation:

Pearson correlation (r) is defined as a factor which measures the linear dependence between two variables (x and y). It's also known as a parametric correlation.

Here, r = -0.19

Now, as r is NEGATIVE.

⇒ As the value of x increases , value of y decreases.

⇒There is a NEGATIVE ASSOCIATION.

Now as the value of r is between 0 and ( -1). So the factor of variation is very small.

Hence, it is WEAK NEGATIVE ASSOCIATION.

You might be interested in

Can someone please answer this question please answer it correctly and please show work please answer it correctly

liberstina [14]

Answer:

I have attached a photo containing my work and answers. If you have any questions, please let me know!

~Hope this helps!~

7 0

3 years ago

If g(x)= 3x-1 solve for x when g(x)=-20.

Nadya [2.5K]

Good evening

Answer:

$x=\frac{-19}{3}$

Step-by-step explanation:

g(x) = -20

⇔

3x-1 = -20

⇔

3x = -20 + 1

⇔

3x = -19

⇔

x = -19/3

____________________

3 0

3 years ago

Which expressions are equivalent to 7b(3+c) ?

aliya0001 [1]

C because it's using the distributive property. It's breaking it down into sections.

8 0

3 years ago

G(a) = 3^3a-2 . Find g(1)

OleMash [197]

Sub 1 for a

$G(1)=3^{3(1)-2}$
$G(1)=3^{3-2}$
$G(1)=3^{1}$
$G(1)=3$

5 0

3 years ago

What is the equation of the quadratic graph with a focus of (3, 6) and a directrix of y = 4? f(x) = one fourth (x − 3)2 + 1 f(x)

mina [271]

Let point (x, y) be any point on the graph, than the distance between (x, y) and the focus (3, 6) is sqrt((x - 3)^2 + (y - 6)^2) and the distance between (x, y) and the directrix, y = 4 is |y - 4|

Thus sqrt((x - 3)^2 + (y - 6)^2) = |y - 4|
(x - 3)^2 + (y - 6)^2 = (y - 4)^2
x^2 - 6x + 9 + y^2 - 12y + 36 = y^2 - 8y + 16
x^2 - 6x + 29 = -8y + 12y = 4y
(x - 3)^2 + 20 = 4y
y = 1/4(x - 3)^2 + 5

Required answer is f(x) = one fourth (x - 3)^2 + 5

8 0

3 years ago

Please help thank you!​

Please help thank you!