Use the appropriate probability model (Binomial).
-Internet service providers (ISP) need to resolve customer problems as quickly as
Possible. For one ISP, past data indicates that the likelihood is .80 that customer calls
Regarding Internet service interruptions are resolved within one hour. Out of the next 10
Customer calls about interrupted service, the probability that exactly 7 will be resolved
Within one hour is
A) 0.2013.
B) 0.8791.
C) 0.7897.
D) 0.3452.
E) 0.1209.

Question

Quizplus · Accepted Answer

The probability of exactly 7 out of 10 calls being resolved within one hour can be calculated using the binomial probability formula: P(X = k) = C(n, k) * p^k * (1-p)^(n-k), where n = 10, k = 7, and p = 0.80. This calculation results in approximately 0.2013.

Use the Appropriate Probability Model (Binomial)