A statistical technique called individual fixed effects is sometimes used in the social sciences. This technique involves: a. comparing two groups of subjects who are similar in all respects except that only one of the groups has experienced the independent variable. b. comparing a particular outcome across time as some factor changes. c. determining which factor accounts for a particular effect. d. comparing key variables that resist fixed effects across populations.

the answer

b. they are parallel and will never intersect.

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

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step-by-step explanation: