Question: Research in Motion RIM developed the Blackberry cell phone that

Research in Motion (RIM) developed the Blackberry cell phone that was widely adopted by businesses for their employees. However, with the increase in popularity of Apple’s iOS and Google’s Android operating systems for mobile devices, sales of Blackberry devices have declined recently. The market share for devices ­using RIM’s operating system was estimated to be 1.6% in 2013. A random sample of 25 mobile devices was selected.
a. Use the binomial distribution to determine the probability that less than three devices from this ample use the RIM operating system.
b. Use the Poisson distribution to determine the probability that less than three devices from this ample use the RIM operating system


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  • CreatedJuly 17, 2015
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