Market-share-analysis company Net Applications monitors and reports on Internet browser usage. According to Net Applications, in the summer of 2 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 rande 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 (to 4 decimals). For this question, compute the probability manually, make sure to carry at least six decimal digits in your calculations. b. Compute the probability that at least 3 of the 20 Internet browser users use Chrome as their Internet browser (to 4 decimals). c. For the sample of 20 Internet browser users, compute the expected number of Chrome users (to 3 decimals).
Market-share-analysis company Net Applications monitors and reports on Internet browser usage. According to Net Applications, in the summer of 2 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 rande 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 (to 4 decimals). For this question, compute the probability manually, make sure to carry at least six decimal digits in your calculations. b. Compute the probability that at least 3 of the 20 Internet browser users use Chrome as their Internet browser (to 4 decimals). c. For the sample of 20 Internet browser users, compute the expected number of Chrome users (to 3 decimals).
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
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Transcribed Image Text: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 (to 4 decimals). For this question, if you
compute the probability manually, make sure to carry at least six decimal digits in your calculations.
b. Compute the probability that at least 3 of the 20 Internet browser users use Chrome as their Internet browser (to 4 decimals).
c. For the sample of 20 Internet browser users, compute the expected number of Chrome users (to 3 decimals).
d. For the sample of 20 Internet browser users, compute the variance and standard deviation for the number of Chrome users (to 3 decimals).
Variance,
Standard deviation
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