Suppose a poll is taken to see which cell phone brands students have and it is found that 37% owned an iPhone, 28% owned a Samsung and 16% owned a Nexus. Suppose that four students are randomly selected (with replacement) from this sample a) What is the probability

A First Course in Probability (10th Edition)
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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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Suppose a poll is taken to see which cell phone brands students have and it is found that 37% owned an iPhone, 28% owned a Samsung and 16% owned a Nexus. Suppose that four students are randomly selected (with replacement) from this sample

a) What is the probability that all four randomly selected students own an iPhone?

b) What is the probability that none of the four randomly selected students owns a Samsung?

c) What is the probability that at least one of the four randomly selected students own a Nexus 

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Binomial distribution is given by

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