plz explain in detail thank you :)

Let y1, 92, ...;yn be an observed random sample from the distribution with probability function f(y; 0) = y + 1 (1 -0)2 0, for y = 0, 1, 2, ... y where o is an unknown parameter, with d e (0, 1).Find the max mum likelihood estimate d for 9.(5 marks) Suppose the maximum likelihood estimate d for e is given by 2+y For n = 20 and the sample mean y = 4.5, calculate R(0.5), where R(.) is the relative likelihood function. Show all your work for full credit