Question

Help, please?

Answer 1

The table below shows the distance y, in miles, traveled by a toy car in x minutes:


Time (x)
(minutes) 20 30 40 50
Distance (y)
(miles) 5 10 15 20


Part A: What is the most likely value of the correlation coefficient of the data in the table? Based on the correlation coefficient, describe the relationship between time and distance traveled by the toy car. (4 points)
[Choose the value of correlation coefficient from 1, 0.8, 0.5, 0.02]

Part B: What is the value of the slope of the graph of distance versus time, and what does the slope represent? (3 points)

Part C: Does the data in the table represent correlation or causation? Explain your answer. (3 points)

Answer 2

@Ria23

Answer 3

@Jhannybean

Answer 4

I really need help with this, please?

Answer 5

can you tell me how many miles you go up every 10 mins

Answer 6

It goes up 5 miles every 10 minutes.

Answer 7

okay slope is given by change in y/change in x
so slope=5/10=1/2=0.5

Answer 8

Okay, so was that a different way of asking for slope?

Answer 9

this is part B
part A u have to use correlation coefficeint formula

Answer 10

Oh! Okay, now I'm catching up. That confused me for a moment there.

Answer 11

depending on how high the correlation coefficent is it tells you how dependant the the values of y are on x, or vice vera

Answer 12

Okay, I think that makes sense. What's next?

Answer 13

do it

Answer 14

http://prntscr.com/87gi5m

Answer 15

http://prntscr.com/87gija
this one is actually best

Answer 16

Holy cow that looks terrifying-

Answer 17

lol

Answer 18

dont be scared

Answer 19

find each one
what is
Sum(x)
Sum(y)
Sum(xy)
sum(x^2)
sum(y^2)

Answer 20

and plug it into the fromula

Answer 21

n is the number of points so its4 in your case