Seventy-five cars sit on a parking lot. Thirty have stereo systems, 30 have air conditioners and 40 have sun roofs. Thirty of the cars have at least two of these three options, and 15 have all three.How many cars on the lot have at least one of the three optionsHow many have exactly one(Hint: Try the inclusion-exclusion formula, carefully.)

Answered: How many cars on the lot have at least…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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How many cars on the lot have at least one of the three options How many have exactly one ? (Hint: Try the inclusion-exclusion formula, carefully.)