During the night shift in an A&E; department (10 pm to 6 am) patients arrived at depart enl requiring emergency treatment. The arrival of emergencies may be modeled as a non- homogeneous Poisson process with hourly rate lambda (f) = 2t / 1 + t2, 0 f 8, where t is the elapsed time in hours since 10pm Find the expected number of emergency admissions by f hours after 10pm. log(1 + t2) logt3 log(l + t3) log(l + t) Solution take integration : log(1 + t*t) answer.