Ared light bulb has been flashing forever, according to a poisson process with rate r . similarly, a blue bulb has been flashing forever, , according to an independent poisson process with rate b . let us fix t to be 12 o'clock. what is the expected length of the interval that t belongs to? that is, find the expected length of the interval from the last event before t until the first event after t . here, an event refers to either bulb flashing.

this allows people to make the best decision or pursue the best option. when alternatives are weighed using their advantages and disadvantages, the option whose disadvantages outweigh the advantages (based on a qualitative or quantitative analysis) are shunned while those whose advantages outweigh their disadvantages are pursued.  

if i am correct, your answer choices are:

a. the temperature remains constant

b. the temperature increases at a constant rate

c. heat flows at a constant rate into the system

d. heat flows at a constant rate out of the system

e. no heat flows into or out of the system

if so, then the answer is e. no heat flows into or out of the system.