Which of the following is the best known Agile development methodology?

In old England, the crown could do no wrong, which serves as the historical source of the doctrine of _____ immunity, holding that the government is immune from suit

Fill in the blanks with correct word

Drivers arrive at a toll booth at a rate of 3 per minute during peak traffic periods. The time between consecutive driver arrivals follows an exponential distribution

What is the probability that it will take less than 1/2 of a minute between consecutive drivers? A) 0.167 B) 0.223 C) 0.777 D) 0.5 E) 1