Web Browser Market Share. 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). 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 browser 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.
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Web Browser Market Share. 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). For a randomly selected group of 20 Internet browser users, answer the following questions.
a) Compute the
b) Compute the probability that at least 3 of the 20 Internet browser 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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