An "all possible regressions" search of a data set containing 4 independent variables will produce ___ regressions.
A)15
B)12
C)8
D)4
E)2

Question

Quizplus · Accepted Answer

The number of possible regressions with 4 independent variables can be found using the formula 2^k - 1, where k is the number of independent variables. Thus, 2^4 - 1 = 15 possible regressions. Therefore, the correct answer is A, 15.

An "All Possible Regressions" Search of a Data Set Containing