A 4-person grievance committee is selected out of 2 departments A and B, with 15 and 20

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A 4-person grievance committee is selected out of 2 departments A and B, with 15 and 20 people, respectively. In how many ways can the following committees be selected?
(A) 3 from A and 1 from B
(B) 2 from A and 2 from B
(C) All from A
(D) 4 PEOPLE REGARDLESS OF DEPARTMENT
(E) At least 3 from department A
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College Mathematics for Business Economics Life Sciences and Social Sciences

ISBN: 978-0321614001

12th edition

Authors: Raymond A. Barnett, Michael R. Ziegler, Karl E. Byleen

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