SOLUTION: Twenty four percent of cell phone users use their cell phones to access the internet. In a random sample of 10 cell phone users, what is the probability that exactly 2 have used th
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Question 749538: Twenty four percent of cell phone users use their cell phones to access the internet. In a random sample of 10 cell phone users, what is the probability that exactly 2 have used their phones to access
The internet?
B.)what is the probability that less than two have used their phones to acess the internet?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Twenty four percent of cell phone users use their cell phones to access the internet.
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In a random sample of 10 cell phone users, what is the probability that exactly 2 have used their phones to access the internet?
Binomial with n = 10 and p(use) = 0.24
P(x = 2) = 10C2*0.24^2*0.76^8 = binompdf(10,0.24,2) = 0.2885
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B.)what is the probability that less than two have used their phones to acess the internet?
P(0<= x <=1) = binomcdf(10,0.24,1) = 0.2673
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Cheers,
Stan H.
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