1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
saveliy_v [14]
3 years ago
12

Which of the following are true about regression with one predictor variable (often called "simple regression")? Check all that

apply.
A. The slope describes the amount of change in Y for a one-unit increase in X
B. The regression equation is the line that best fits a set of data as determined by having the least squared error
C. The slope, b, of the regression equation has the same value as r, the estimated correlation
Mathematics
1 answer:
AfilCa [17]3 years ago
4 0

Answer:

<h3>A. The slope describes the amount of change in Y for a one-unit increase in X .</h3><h3>B. The regression equation is the line that best fits a set of data as determined by having the least squared error.</h3>

Step-by-step explanation:

In statistics, linear regression is a analysis we do to describe the relationship between two variables. With this study, we pretend to know if there's a positive or negative correlation between those variables, if that correlation is strong or weak.

In a linear regression analysis, we modeled the data set using a regression equation, which is basically the line that best fits to the data set, this line is like the average where the majority of data falls. That means choice A is right.

When we use linear equations, we need to know its characteristics, and the most important one is the slope, which is the ratio between the dependent variable and the independent variable. Basically, the slope states the unit rate between Y and X, in other words, it states the amount of Y per unit of X. That means choice B is correct.

Therefore, the correct answers are A and B.

You might be interested in
Cecilia's train travled at 240 miles in 3 hours. How far will it travel in 5.5 hours.
yanalaym [24]
5.5<span>÷3 is 1.83333333, that times 240 is 440</span>
6 0
3 years ago
Which is an equation of the line that passes through (–1, –5) and (–3, –7)
mestny [16]

Answer: y=x-4

Step-by-step explanation: The y value is exactly x minus four.

4 0
3 years ago
Which is equivalent sin^-1 (cos(pi/2))?Give your answer in radians
NNADVOKAT [17]

Answer:

Given the expression: \sin^{-1}(\cos(\frac{\pi}{2}))

Let the value of the given expression in radians be \theta

then;

\sin^{-1}(\cos(\frac{\pi}{2})) =\theta

\cos \frac{\pi}{2} = \sin \theta              ......[1]

We know the value of \cos \frac{\pi}{2} = 0

Substitute the given value in [1] we have;

\sin \theta = 0

Since, the value of \sin \theta is 0, therefore, the value of \theta is in the form of:

\theta = n\pi ; where n is the integer.

At n =0, 1 and 2, {Since, n is the integer}

Value of  \theta =0, \pi and 2\pi

therefore, the answer in radians either   0 , \pi or 2\pi


6 0
3 years ago
Read 2 more answers
What is the interquartile range of 77 88 92 81 86 84 86 83 and how do you get it thx plz help
puteri [66]
To find the IQR you first need to write it in numerical order

77, 81, 83, 84, 86, 86, 88, 92


IQR is just Q3 - Q1

Q1 is the middle of the first have, since it has an even set of 4 numbers in the first half you need to take the average of the two middle ones.. which is 82

Q3 done the same process would be 87. 

87 - 82 = 5

IQR = 5
6 0
3 years ago
Evaluate the integral: <br>​
tatyana61 [14]

Answer: girllll ion know

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Could someone please help
    10·2 answers
  • A railroad crew can lay 7 miles of track each day. They need to lay 203 miles of track. The length, L (in miles), that is left t
    10·1 answer
  • Sides and angles of this triangle?
    13·2 answers
  • Name two planes that intersect in UV in the<br> figure to the right
    10·1 answer
  • NO LINKS, BAD ANSWERS OR YOU WILL BE REPORTED!!! Pi question.
    11·2 answers
  • A BULLET SHOT FROM A PISTOL CAN BE ANALYZED THROUGH:
    12·2 answers
  • In a survey of 3,500 people who owned a certain type of​ car, 1,225 said they would buy that type of car again. What percent of
    5·1 answer
  • Whats 10 plus 10 ..........................
    11·2 answers
  • I will make brainliest
    5·1 answer
  • PLS HELP, EXPLANATION IS GREATLY APPRECIATED!!!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!