Researchers are concerned that the weight of the average American school child is increasing implying,among other things,that children's clothing should be manufactured and marketed in larger sizes.If X is the weight of school children sampled in a nationwide study,then X is an example of
A)a categorical variable.
B)a discrete variable.
C)a continuous variable.
D)a table of random numbers.

Question

Quizplus · Accepted Answer

X represents the weight of school children which can take on any value within a range. Since weight is a measurement that can be represented by any real number, X is an example of a continuous variable. A categorical variable is one that represents a characteristic or attribute, such as gender or color, and can only take on certain values. A discrete variable is one that represents a count, such as the number of siblings someone has, and can only take on integer values. A table of random numbers is a tool used in statistics to randomly select samples.

Researchers Are Concerned That the Weight of the Average American