Sheldon wants to study the correlation between the age of a pup, in weeks, of a certain breed and its weight. Sheldon has a dog of that breed that just had a litter of four pups. Sheldon records the weight of all of the pups once a week for three months. On the basis of his analysis, he
draws his conclusion.
What kind of statistical investigation is Sheldon performing?
OA theoretical study
OB.
experimental study
Oc observational study
OD. survey

Astudent found the solution below for the given inequality. |x-9|< -4 x-9> 4 and x-9< -4 x> 13 and x< 5 which of the following explains whether the student is correct? -the student is completely correct because the student correctly wrote and solved the compound inequality. -the student is partially correct because only one part of the compound inequality is written correctly. -the student is partially correct because the student should have written the statements using “or” instead of “and.” -the student is completely incorrect because there is no solution to this inequality.