3 years ago

Is this right? Please help me

1 answer:

3 0

Yes you are correct. The line of best fit, aka the regression line, represents the line that is closest to all of the points on the scatterplot. Ideally you want the line to go through all of the points; however, it's not possible in this case. The next best thing is to get as close as possible. You can think of it like a supermarket that is right in the middle of a city so that it's closest to all its residents.

You might be interested in

Will is twice as old as Jill. Three years ago, Jill's age was two fifths of Will's age then. How old is each now?

dimulka [17.4K]

"Will is twice as old as Jill."

   Jill's age . . . . .   J
   Will's age . . . . 2J .

"Three years ago . . .

   Jill's age then . . . . .   J - 3
   Will's age then . . . . 2J - 3

". . . Jill's age then was 2/5 of Will's age then."

   J - 3 = (2/5) (2J - 3)
Multiply
each side by 5 : 5J - 15 = 2 (2J - 3)

Divide
each side by 2 :    2.5 J - 7.5 = 2J - 3

Subtract 2J
from each side: 0.5 J - 7.5 =    -3

Add 7.5
to each side: 0.5 J = 4.5

Multiply
each side by 2 :    J    = 9

Jill is 9 y.o. now.
Will is 18 y.o. now.

4 0

2 years ago

There was a bus that hit there was 2 married people and ten other passengers every single person died. how many people are alive

musickatia [10]

Answer:

2 people are are alive because all the single people(meaning they have no spouse) died do the married people are the only ones who survived.

Step-by-step explanation:

4 0

3 years ago

Kiera's dance class starts at 4:30 p.m. and ends at 6:15 p.m. How long is her dance class?

qwelly [4]

From 4 PM to 6 PM is 2 hours, and it's 15 minutes after 6, so her dance class is 2 hours and 15 minutes long.