SOLUTION: It is reported that 16 percent of American households use a cell phone exclusively for their telephone service. In a sample of eight households, find the probability that:
a)
Algebra ->
Probability-and-statistics
-> SOLUTION: It is reported that 16 percent of American households use a cell phone exclusively for their telephone service. In a sample of eight households, find the probability that:
a)
Log On
Question 363999: It is reported that 16 percent of American households use a cell phone exclusively for their telephone service. In a sample of eight households, find the probability that:
a) None use a cell phone as their exclusive service.
b) At least one uses the cell exclusively.
You can put this solution on YOUR website! It is reported that 16 percent of American households use a cell phone exclusively for their telephone service. In a sample of eight households, find the probability that:
-----
Binomial Problem with n = 8 and p = 0.16
-----
a) None use a cell phone as their exclusive service.
P(x=0) = 0.84^8
------------------------
b) At least one uses the cell exclusively.
P(at least one uses) = 1 - P(none use)
= 1 - 0.84^8
------------------------
(c) At least five use the cell phone.
P(5<= x <=8) = 1 - P(0<= x <=4) = 1 - binomcdf(8,.16,4) = 0.0038
===================
Cheers,
Stan H.
(