gehrisrichard gehrisrichard
  • 13-05-2020
  • Mathematics
contestada

a data set consists of these points (2, -4), (4, -7), (5, -12), Elisa found the regression equation to be y = 2.5x + 1.5 is she correct

Respuesta :

PollyP52 PollyP52
  • 13-05-2020

Answer:

Not correct.

Step-by-step explanation:

If we plug in the x values into the equation we don't get anyway near to the y-values:

x = 2, y = 2.5(2) + 1.5 = 6.5 - comp[are this with y = -4 of the point(2, -4).

when x = 4, y = 11.5 ( compared with -7) and

when x = 5, y = 14 (compared with  -12).

Answer Link

Otras preguntas

Which is characteristic of a mineral? A. It must be crystalline and have an indefinite chemical composition. B. It must be amorphous and have an indefinite ch
The Union General who assumed command of the army during the last year of the war was ShermanGrantMcClellan.
my number has 8 tens the digit in the ones place is greater than the digit in the tens place
What is the only substance on Earth that exist as a solid and gas?
In 2004, there were approximately 275 students in the Delaware High School band. In 2010, that number increased to 305. Find the annual rate of change in the nu
which substance in the atmosphere absorbs most of the ultraviolet rays?
The idea that people within a state can and should determine the laws within that state is referred to as A. popular sovereignty. B. state sovereig
Chelsea has 11 times as many art brushes as Monique. If they have 60 art brushes altogether, how many brushes does Chelsea have?
What decimal is not equivalent 4.07 4.070 4.70 4.0700
what form of government did ancient Greece and ancient Mesopotamia have in common?