Question

select the correct answer. 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? a. observational study b. experimental study c. theoretical study d. survey

Explanation:

Sheldon is simply recording the weight of pups over time without manipulating any variables. In an observational study, researchers observe and collect data without interfering with the subjects. Here, he is observing the natural relationship between age and weight of the pups.

Answer:

A. observational study