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2 years ago

Which of these pairs of variables would you expect to be represented by a scatterplot with a negative correlation?

Mathematics

2 answers:

Inessa [10]2 years ago

8 0

C. The number of miles driven and the number of people on the bus .

puteri [66]2 years ago

3 0

The correct answer is D. The number of concert tickets purchased and the number of concert tickets still available for purchase

Explanation:

In mathematics, a negative correlation occurs when the increase in one of the variables makes the other variable decrease or vice-versa. For example, there is a negative correlation between the amount of time an individual exercises and his/her weight because the more hours it is expected the individual weights less. Additionally, in a scatterplot (graphic that uses dots to represent variables) a negative correlation is represented as a downward line considering values start high on the y or vertical axis but slowly go down.

From the options given, the variables that would lead to a scatterplot with a negative correlations are "he number of concert tickets purchased and the number of concert tickets still available for purchase" because the more tickets purchased the fewer tickets available and vice-versa, which means if one variable increases the other falls and thus, they have a negative correlation.

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66.64 rounded to the nearest cent

Zolol [24]

It would just be 66.6

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2 years ago

Hoe do i get the answer? what do i do ??

HACTEHA [7]

That equal 1 because they are the same

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2 years ago

Read 2 more answers

A submarine starts at sea level and travels to a position that is a little lower than −24 feet. Use the drop-down menus to compl

Black_prince [1.1K]

Answer:

The submarine's position means the distance it traveled is greater than 24 feet
A possible position of the submarine is -27 feet

Step-by-step explanation:

Distance is generally a positive number. (Displacement, or position may be negative, as in this case.) If the sub started at 0 feet and went lower than -24 feet, it traveled a distance of more than 24 feet (greater than 24 ft).

Of the numbers listed, the only one lower than -24 is -27.

7 0

2 years ago

Answer as many as you can please (write in slope-intercept form)

RoseWind [281]

Answer: See below

Step-by-step explanation:

For the first one, we are already given our slope. All we need to do is find the y-intercept, b.

y=-2x+b

6=-2(-3)+b

6=6+b

b=0

The slope-intercept form is y=-2x.

For the second one, we need to first find the slope using $m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$ .

$m=\frac{1-13}{3-(-6)} =\frac{-12}{9}$

Now that we have our slope, we can plug it into our slope-intercept form to solve for b.

$y=-\frac{12}{9} x+b$

$3=-\frac{12}{9}(1)+b$

$-\frac{9}{4} =b$

The slope-intercept form is $y=-\frac{12}{9} -\frac{9}{4}$ .

For the third one, we are already given the slope, so all we have to do is find b.

$y=-\frac{1}{2}x +b$

$-7=-\frac{1}{2} (-4)+b$

$-7=2+b$

$-9=b$

The slope-intercept form is $y=-\frac{1}{2} x-9$ .

For the last one, we need to first find the slope using $m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$ .

$m=\frac{-8-2}{3-1}=\frac{-10}{2} =-5$

Now that we have our slope, we can plug it into our slope-intercept form and find b.

$y=-5x+b$

$2=-5(1)+b$

$2=-5+b$

$7=b$

Our slope-intercept form is $y=-5x+7$ .

4 0

2 years ago

Explain how you got your answer please :

liraira [26]

X is the number of hours studied, so replace x with 3 in the equation:

y = 6.8(3) + 60
y = 20.4 + 60
y = 80.4

Round down to 80.

The answer would be A.

3 0

2 years ago