What is a lurking variable?
a. a lurking variable is a quantitative variable that has either a finite number of possible values or a countable number of possible values. in addition, lurking variables are typically equal to zero, or almost equal to zero.
b. a lurking variable is a quantitative variable that has an infinite number of possible values that are not countable. in addition, lurking variables are typically very large numbers that make them difficult, if not impossible, to include in a study.
c. a lurking variable is a response variable that was not considered in a study, but is also affected by the casual relationship of the explanatory variables in the study. in addition, lurking variables are typically related to response variables in the study.
d. a lurking variable is an explanatory variable that was not considered in a study, but that affects the value of the response variable in the study. in addition, lurking variables are typically related to explanatory variables in the study.

Option D

Step-by-step explanation:

When we study about relationship between two or more variables we sometimes ignore factors which affect the relationship other than these two variables. These are also called extraneous variables or lurking variables.  These affect the relationship very much.

Thus we find that out of 4 options given, Option I is incorrect because lurking variables need not be equal to almost 0.

Option B is incorrect because these need not have an infinite possible values.

Option C is a lurking variable need not be a response variable alone normally this would be an explanatory variable

Option D is right

A lurking variable is an explanatory variable that was not considered in a study, but that affects the value of the response variable in the study. In addition, lurking variables are typically related to explanatory variables in the study.

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.

look in attachments

step-by-step explanation:

a = (-2, 0)

b= (-4, 0)

c = (-5,2)

d = (-1,2)