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
mafiozo [28]
2 years ago
9

The OLS method A. minimizes the sum of the residuals. B. maximizes the sum of the residuals. C. maximizes the sum of the squared

residuals. D. minimizes the sum of the squared residuals.
Mathematics
1 answer:
blagie [28]2 years ago
8 0

Answer: D. minimizes the sum of the squared residuals

Step-by-step explanation: The ordinary least square method is often used in locating the trendine which best fits a graphical linear model. The best is one in which the sum of the squared residual is smallest. The residual refers to the difference between the actual and the predicted points. The sum of the squared differences is obtained and the trend line is positioned where the residual is minimum. Choosing a OLS, and minimizing the sum.of the squared residual, the error difference between the predicted and actual score is minimized or reduced, hence, improving the prediction accuracy of our model.

You might be interested in
Find an equation for the nth term of the arithmetic sequence.
amm1812

Answer:

a_n=-301 +37(n-1)

Step-by-step explanation:

arithmetic sequence formula:  a_n=a +(n-1)d

where a is the first term and d is the common difference

Given:

  a_{10}=32

⇒ a +(10-1)d=32

⇒ a+9d=32

Given:

    a_{12}=106

⇒ a +(12-1)d=106

⇒ a+11d=106

Rearrange the first equation to make a the subject:

a = 32 - 9d

Now substitute into the second equation and solve for d

    (32 - 9d) + 11d = 106

⇒ 32 + 2d = 106

⇒ 2d = 106 - 32 = 74

⇒ d = 74 ÷ 2 = 37

Substitute found value of d into the first equation and solve for a:

a + (9 x 37) = 32

a + 333 = 32

a = 32 - 333 = -301

Therefore, the equation is: a_n=-301 +37(n-1)

4 0
2 years ago
The sum of the square of a<br> number and five times that<br> number is no more than 46.
lisabon 2012 [21]

Answer:

3

Step-by-step explanation:

46/5 = 9.2

if you take the reverse of the square which is the square root of 9.2 you get about 3.

Thus proving that 3 squared times five is infact less then 46.

7 0
3 years ago
Read 2 more answers
A shipping company charges $6 to skip a package that weighs up to 1 pound and $2 for each additional pound or portion of a pound
navik [9.2K]

Step-by-step explanation:

A shipping company charges $6 to ship a package that weighs up to 1 pound and $2 for each additional pound or portion of a pound.

lets make an assumption that the total weight of the shipment is x pound and cost for shipping is y.

the shipping company charges $6 for the first pound.

Up to now the charge is y=6

After 1 pound, i.e for the remaining (x-1) pounds, they charge $2 per pound.

So, the total charge will be, y=6+2(x-1)

weight is always starting from zero as there is no negative weight.so X>0

so the equation is 6(2x-1), where X is more than 0

8 0
3 years ago
Read 2 more answers
May someone please help me with this?
vitfil [10]
I’m pretty positive it’s 90 degrees. hope this helps!
5 0
2 years ago
Alexis and her siblings buy their mom a bottle of her favorite perfume, Seabreeze, as a birthday gift. The bottle cost $50.84 an
riadik2000 [5.3K]
12.71 per ounce, hope this helped :))
5 0
2 years ago
Read 2 more answers
Other questions:
  • In gymnastics competition Paige's score was 37.025 what is Paige's score written in word form
    7·1 answer
  • Last question please help me
    5·1 answer
  • What is the value of the variable is
    7·1 answer
  • A car sells for 16,000. If the rate of depreciation is 18%, find the value of the car after 8 years.
    5·1 answer
  • Which expressions are equivalent to 2(25)?<br> 2(20 + 15)<br> 2(10 + 15)<br> 2(2 + 5)<br> 2(20 + 5)
    7·1 answer
  • HELP ME ASAP!!! PLEASE
    12·1 answer
  • Find the value of x that will make L||M. <br> Please help me on this one!!!!!!! I need this done.
    9·2 answers
  • a group of students were surveyed to find out if they like building snowmen or skiing as a winter activity. The results of the s
    11·1 answer
  • -2/4 times 344/9=?<br> Please help me . I dont really understand this question.
    14·2 answers
  • How long does it take to pay off the higher-interest card?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!