Solution: Telemarketing. the probability that a call will reach a live person is 0.2. the calls are independent. (a) a telemarketer places 5 calls. what is the probability that none of them reaches a live person.
Answer: The given random experiment can be considered as binomial experiment with probability of success = 0.2 and number of trials = 5
Therefore, we have:

Let x be the number calls that reach to live person.
We have to find 
Using the binomial probability distribution, we have:



Therefore, the probability that none of them reaches a live person is 0.3277
We have two overlapped triangles:
x/24=6/x
cross multiply
x²= 144
x=√144= 12 so x = 12
Answer:
0.2121~
Step-by-step explanation:
It's a repeating number. 0.0212121212
Answer:
8
Step-by-step explanation: