100 POINTS Which statement is true about the residual plot below? The sum of the residuals is greater than zero.
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A linear model is a good it for the data.
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5 x
No regression model is appropriate for the data.
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A quadratic model is appropriate for the data.
Done
BEL

I believe that the answer would be A linear model is a good hot for the data.

Step-by-step explanation:

    If I'm not wrong I think it is "A quadratic model is appropriate for the data."

Step-by-step explanation:

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for