please let me get a different tutor answer me this time for these questions. Thanks. please calculate me number 5 and number 1, for number 5- there is some partial calculations, please continue calculating for me until it gets the final answer. For question number 1- the answer is 11572.5 pi ( please show me the calculation for that), Thanks.

3. The newest led light has a life expectancy of p: = 50000 hours and its life probability density function is given by: tet/H f() In if t 2 0 and f (t) = 0 if t