Suppose you just received a shipment of eleven televisions. three of the televisions are defective. if two televisions are randomly selected, compute the probability that both televisions work. what is the probability at least one of the two televisions does not work?
Accepted Solution
A:
Answer: The probability that both televisions work : 0.5329The probability at least one of the two televisions does not work : 0.4671Step-by-step explanation:Given : The total number of television : 11The number of defective television : 3The probability that the television is defective : [tex]p=\dfrac{3}{11}\approx0.27[/tex] Binomial distribution formula :- [tex]P(x)=^nC_xp^x(1-p)^{n-x}[/tex], where P(X) is the probability of getting success in x trials, p is the probability of success and n is the total trials.If two televisions are randomly selected, then the probability that both televisions work:[tex]P(0)=^2C_0(0.27)^0(1-0.27)^{2-0}=(1)(0.73)^2=0.5329[/tex]The probability at least one of the two televisions does not work :[tex]P(X\geq1)=1-P(0)=1-0.5329=0.4671[/tex]