Question

Aaron Plumbing and Bautista Electrical have both made bids in 50 of the same projects over the years. Aaron was selected for 20 of those projects. Bautista was selected for 15 of the projects, and in 12 of the projects, they both were selected. Use a Venn diagram to answer the following questions:
a. In what percentage of the projects was Bautista selected, but Aaron was not?
b. In what percentage of the projects was neither company selected?
c. In what percentage of the projects where Aaron was selected was Bautista also selected?
d. Have the selections been statistically independent?


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  • CreatedJuly 16, 2015
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