A survey was conducted of 100 students on which credit cards the students have, Mastercard and/or Visa. There is a .6 probability the student has a Visa. There is a .5 probability the student has a Mastercard. There is a .3 probability the student has both. a. What is the probability a student has a Visa, Mastercard, or both?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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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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A survey was conducted of 100 students on which credit cards the students have, Mastercard and/or
Visa. There is a .6 probability the student has a Visa. There is a .5 probability the student has a
Mastercard. There is a .3 probability the student has both.

a. What is the probability a student has a Visa, Mastercard, or both?

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