smart boards, 2 classrooms have no boards. Every year, an inspector visits the school and selects one classroom randomly. Let A denote the event that the selected classroom has a white board, and let B denote the event that the selected classroom has a smart board, symbolically denote the following event and find the number of classrooms represented by each. (b) The selected classroom has both boards. The selected classroom has smart board only. The selected classroom has either a white board or a smart board but not both.

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 6ECP: In Pennsylvania’s Cash 5 game, a player chooses five different numbers from 1 to 43. If these five...
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There are 35 classrooms in a primary school, of which 20 classrooms have white boards, 18 classrooms have smart boards, 2 classrooms have no boards. Every year, an inspector visits the school and selects one classroom randomly. Let A denote the event that the selected classroom has a white board, and let B denote the event that the selected classroom has a smart board, symbolically denote the following event and find the number of classrooms represented by each. (b) The selected classroom has both boards. The selected classroom has smart board only. The selected classroom has either a white board or a smart board but not both.

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