The probability of a successful optical alignment in the assembly of an optical data storage product is 0.8. assume that the trials are independent.
(a) what is the probability that the frst successful alignment requires exactly four trials?
(b) what is the probability that the frst successful alignment requires at most four trials?
(c) what is the probability that the frst successful alignment requires at least four trials?

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min