30 because the angles of the triangle should be 180. Since we know one is 90 the other is 60 so 180-(90+60)=30
Answer:
True
Step-by-step explanation:
The time between customer arrivals is called inter-arrival time. According to Queueing Notation, the inter-arrival time can be model based on difference probability distribution. The probability distribution by which the inter-arrival time can be modeled include:
- Exponential Distribution or Markov distribution
- Constant or Deterministic
- Hyper - exponential
- Arbitrary or General distribution