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3 years ago

Can someone answer this Algebra question asap? thanks!! A) -4 B) -1/4 C) 1/4 D) 4

Mathematics

2 answers:

borishaifa [10]3 years ago

8 0

Answer:

Step-by-step explanation:

1/4

1 = change in y

4 = change in x

As you can see, the graph goes up one y value, but goes over to the right 4 values. And this graph is going in the positive direction.

So it has a change of y of one, and a change of x of 4. Which can be represented as 1/4.

viktelen [127]3 years ago

7 0

Answer:

The slope is 1/4.

Step-by-step explanation:

Take the points (8, 3) and (-4,0)

The slope= (3 - 0) / (8 - - 4)

= 3/12

= 1/4.

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The correlation analysis assumes that the measurements have a bivariate normal distribution in the population. Select all of the

RoseWind [281]

Answer:

A. True

B. True

C. False

D. False

E. False

F. False

G. True

Step-by-step explanation:

Select all of the features that define a bivariate normal distribution.

(this means that we select only those that are properties of the bivariate normal distribution)

A. Bell-shaped probability distribution in two dimensions rather than one

TRUE because any combination of the two is still normal Z(x,y)=aX+bY

B. A relationship between X and Y that is not linear

TRUE The contours of the distribution are ellipses.

C. The presence of outliers

FALSE possible, but not always.

D. Either X or Y has a decidedly skewed distribution

FALSE normal distributions are symmetric

E. A relationship between X and Y that is linear

FALSE see answer to B

F. A cloud of points that is funnel shaped (wider at one end than the other)

FALSE normal distributions are symmetric

G. The frequency distributions of X andY separately are normal

TRUE For example, in Z(x,y)=aX+bY, putting a or b=0 means that X and Y separately are normal.

4 0

3 years ago

Can someone please help me with this?

natulia [17]

I believe it is -8 since the point where the line is x=80 and y=-10. Then you divide x/y (80/-10) and get -8.

6 0

3 years ago

Read 2 more answers

Subject:Mathematics

Kobotan [32]

The vertex
Blah blah blah 20 characters longggggg

6 0

3 years ago

A _______ variable is a variable that has a single numerical value, determined by chance, for each outcome of a procedure. A

Oxana [17]

Answer:

random variable

Step-by-step explanation:

Random variable also known as stochastic variables are variables that are used in statistics and probability, The value of a random variable must be determined by chance which remain uncertain and depends on the outcome of a random process or experiment.

Unlike algebra, when random variable is introduced into a mathematical model, it is represented by capital letter and it has a single numerical value.

6 0

3 years ago

What is the slope of the line given by the equation y= -3x

galben [10]

Answer:

-3

Step-by-step explanation:

The given equation is in slope intercept form.

The form is y=mx+b

This is where "m" is the slope, and "b" is the y intercept.

So in this equation, m=-3.

Therefore, the slope is -3.

3 0

3 years ago