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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)
I really need help with this, please?
can you tell me how many miles you go up every 10 mins
It goes up 5 miles every 10 minutes.
okay slope is given by change in y/change in x so slope=5/10=1/2=0.5
Okay, so was that a different way of asking for slope?
this is part B part A u have to use correlation coefficeint formula
Oh! Okay, now I'm catching up. That confused me for a moment there.
depending on how high the correlation coefficent is it tells you how dependant the the values of y are on x, or vice vera
Okay, I think that makes sense. What's next?
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Holy cow that looks terrifying-
dont be scared
find each one what is Sum(x) Sum(y) Sum(xy) sum(x^2) sum(y^2)
and plug it into the fromula
n is the number of points so its4 in your case
fill out those values and plug into formula, i can tell you right now, that the correlation is most likely +1 as it can be modeled perfectly as a slope intercept formula
I'm trying to figure it out but I'm still really confused
It just doesn't make any sense to me, do you think you could walk me through it?