!!!ONE HUNDRED POINTS I'M HAVING TROUBLE
Hours GPA
18 4
21.9 3.69
18 3.8
19.7 3.5
18 4
16.7 3.5
15.5 3.92
9.2 2.23
18 3.7
13.8 1.42

⦁ Describe how the line of best fit and the correlation coefficient can be used to determine the correlation between the two variables on your graph.

⦁ Describe the type of correlation between the two variables on your graph. How do you know?

⦁ Does the correlation between the variables imply causation? Explain.

⦁ How do you calculate the residuals for a scatterplot?

⦁ Calculate the residuals for your scatterplot in step 2d.

⦁ Create a residual plot for your data.

⦁ Does your residual plot show that the linear model from the regression calculator is a good model? Explain your reasoning.

⦁ Using your equation from step 2d, estimate the GPA of a student who studies for 15 hours a week. Justify your answer.

answer: t=3

step-by-step explanation:

which expression represents the approximate length of bc?

step-by-step explanation:

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.