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Lemur [1.5K]
3 years ago
13

Among a student group 49% use Google Chrome, 20% Internet Explorer, 10% Firefox, 5% Mozilla, and the rest use Safari. What is th

e probability that you need to pick 7 students to find 2 students using Google Chrome
Mathematics
1 answer:
Elina [12.6K]3 years ago
8 0

Answer:

17.39%

Step-by-step explanation:

We can summary the question:

  • Probability of students using Google chrome= 0.49
  • Probability of students using other browsers = 0.51

So the probability that you need to pick 7 students to find 2 students using Google Chrome is:

P(G) = C^{7} _{2} * (0.49^{2})(0.51^{7}) = 21*0.2401*0.03 = 0.1739 = 17.39%

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