12. The least-squares regression equation ý = 10 + 2x describes the relationship between x = age (in weeks) and y = weight (in pounds) for a sample of 50 German shepherd puppies for ages 5 weeks. The weight of a particular German Shepherd puppy that is 10 weeks old is underestimated by 10
pounds. How much does this particular puppy weigh?
(A) 10 pounds
(B)20 pounds
(C) 30 pounds
(D) 40 pounds
(E) 50 pounds

D

Explanation:

The correct answer is (D). A German Shepherd puppy that is 10 weeks old is predicted to weigh 10 + 2(10) = 30 pounds. Because the weight of this particular puppy is underestimated by 10 pounds, this puppy weighs 40 pounds.

D

Explanation:

A German Shepherd puppy that is 10 weeks old is predicted to weigh 10 + 2(10) = 30 pounds. Because the weight of this particular puppy is underestimated by 10 pounds, this puppy weighs 40 pounds.

answer:

well i am certain this question isn't for serious matters.

explanation:

answer:

i havent taken the psat, but i have the sat, make sure to bring some snacks, because youre in there forever, 2 sharp number two pencils, an sat approved calculator, and maybe a jacket.   your phone and any books will be taken up, so don't try to bring them(but they will be given back at the end of the testing).   good luck!   i hope you do well!