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
xxTIMURxx [149]
3 years ago
13

Which statements about residuals are true for the least-squares regression line? I. A random scattering of residuals indicates t

hat the relationship is linear. II. The sum of the residuals is always 0. III. Residuals are plotted against the original x-values.
Mathematics
1 answer:
Daniel [21]3 years ago
7 0

Answer:

II. The sum of the residuals is always 0.

Step-by-step explanation:

A least squares regression line is a standard technique in regression analysis used to make the vertical distance obtained from the data points running to the regression line to become very minimal or as small as possible.

For any least-squares regression line, the sum of the residuals is always zero.

Basically, residuals are used to measure or determine whether or not the line of regression is a good fit or match for the data by subtracting the difference between them i.e the predicted y value and the actual y value, for the x value respectively.

Hence, the statement about residuals which is true for the least-squares regression line is that the sum of the residuals is always zero (0).

You might be interested in
The diameters of a circle is 7m. Find its area to the nearest tenth?? Help please
Lady bird [3.3K]

Area =\pi r^{2}

The diameter is double the length of the radius

7 ÷ 2 = 3.5

3.5 × 3.5 = 12.25

12.25\pi = 38.4845100064751

38.4845100064751 rounded to the nearest tenth is 38.5

8 0
2 years ago
Read 2 more answers
When Scott got his dog Arfus, it weighed
Leokris [45]
It gained 2 lb. because if you subtract 8-6 you would get 2. So Arfus gained 2 lb.
6 0
3 years ago
Five less than twelve times a number is represented by:
Paraphin [41]

Option ( 1 )

.....................

.....................

.....................

5 0
3 years ago
A triangle has one side that is 6 units long and another side that is 3 units long.
kiruha [24]

The possible value of the third length is an illustration of Triangle inequality theorem

The possible third lengths are 4 units and 6 units

<h3>How to determine the possible length of the third side?</h3>

To determine the third length, we make use of the following Triangle inequality theorem.

a + b > c

Let the third side be x.

So, we have:

x + 6 > 3

x + 3 > 6

3 + 6 > x

Solve the inequalities

x > -3

x > 3

x < 9

Remove the negative inequality value.

So, we have:

x > 3 or x < 9

Rewrite as:

3 < x or x < 9

Combine the inequality

3 < x < 9

This means that the possible value of the third length is between 3 and 9 (exclusive)

Hence, the possible third lengths are 4 units and 6 units

Read more about Triangle inequality theorem at:

brainly.com/question/2403556

5 0
2 years ago
AC, DF and YZ are straight lines and all angles are in degrees.
Alinara [238K]

Answer:

ac is parallel to df because it doesn't intersect with each other

7 0
2 years ago
Read 2 more answers
Other questions:
  • A car Travel 476 miles on 14 gallons of gas. Write an eqation relating the distance d to the nuber of gallons
    11·1 answer
  • The interest rate r required to increase your investment p to the amount a in t years is found by mc075-1.jpg. Find the interest
    13·2 answers
  • State the value of the discriminant for the equation,<br> 3x^2 + 7x + 3 = 0
    5·1 answer
  • Solve the formula for the perimeter of a rectangle, P = 21 + 2w for l
    15·1 answer
  • 7/8 + (-2/3)
    7·1 answer
  • The price of jeans was reduced $6 per week for 7 weeks. By how much did the price of the jeans change over the 7 weeks?
    15·1 answer
  • What is the greatest common factor of 16,32, and 44?
    8·1 answer
  • The equation 2x - y = -7 written in slope-intercept form is
    10·1 answer
  • Find the measure of the nlissing angle.<br> 220<br> a
    10·1 answer
  • Will mark Brainliest if you help me quickly! Helppppp!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!