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

PLEASE HELP ME FOR 30 POINTS!!!!!!!!! Complete the exchanges with the correct form of Ir-to go. Refer to Realidades 1 page 206 for review. 1. Laura: Que _____va
Anyone know how to do this?!!
find the volume of cuboid meausring 19 cm by 15 cm by 10 cm.​
how does exercise increase oxygen by the cells
Find the unit rate $1.25 for 5 gumballs
Urgent. What is the single most important problem that should be addressed in the following paragraph during global revision? When you look up into th
WHAT ARE THESE IN SPANISH 1. de la mañana: 2. esta tarde: 3. después: 4. esta noche: 5. entonces:
Square B is a dilation of square A. What is the scale factor?
which of the following are key elements of darwin's theory of evolution by natural selection?
Which equation is parallel to