Mathematics, 14.03.2020 03:56 Lakelife12

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 (Forbes website, December 15, 2014). For a randomly selected group of 20 Internet browser users, answer the following questions.

a. Compute the probability that exactly 8 of the 20 Internet browser users use Chrome as their Internet browser.
b. Compute the probability that at least 3 of the 20 Internet browsers users use Chrome as their Internet browser.
c. For the sample of 20 Internet browser users, compute the expected number of Chrome users.
d. For the sample of 20 Internet browser users, compute the variance and standard deviation for the number of Chrome users.

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