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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

You may need to use the appropriate appendix table or technology to answer this question.

Market-share-analysis company Net Applications monitors and reports on internet browser usage. According to Net Applications, in the summer of 2014, Google's Chrome browser exceeded a 20% market share for the first time, with a 20.37% share of the browser market.† For a randomly selected group of 15 Internet browser users, answer the following questions. (Round your answers to four decimal places.)

(a)

Compute the probability that exactly 7 of the 15 Internet browser users use Chrome as their Internet browser. (Round your answer to four decimal places.)

(b)

Compute the probability that at least 3 of the 15 Internet browser users use Chrome as their Internet browser. (Round your answer to four decimal places.)

(c)

For the sample of 15 Internet browser users, compute the expected number of Chrome users.

(d)

For the sample of 15 Internet browser users, compute the variance and standard deviation for the number of Chrome users. (Round your answers to four decimal places.)

variance ____

standard deviation____

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