Question

researchers initiated a long - term study of the population of american black bears. one aspect of the study was to develop a model that could be used to predict a bears weight (since it is not practical to weigh bears in the field). one variable thought to be related to weight is the length of the bear. the accompanying data represent the lengths and weights of 12 american black bears. complete parts (a) through (d).
click here to view the data set.
click here to view the critical values table.
(a) which variable is the explanatory variable based on the goals of the research?
a. the weight of the bear
b. the length of the bear
c. the number of bears

Explanation:

An explanatory variable is the one that is used to predict or explain the response variable. Here, the goal is to predict the bear's weight using the length. So, the length is used to explain the weight.

Answer:

B. The length of the bear