kindly help me solve this. It is a proof question

The idea of a normal probability plot can be extended to other distributions. Let y1, . . ., n be a random sample. To check if a specified continuous distribution with CDF F fits this sample, we can plot the theoretical quantiles against the sample quantiles. A good approximation is that the order statistic y( is the (?)-th sample quantile and F-(1) is the corresponding theoretical quantile. In this problem, we will consider the Uniform(0, 1) distribution. (a) Show that the n+ 1 )-th theoretical quantile is given by: . . N. F-1 2 = 1, . ..n. n+1 n +1