Answer all the questions and give full explanation

(1) A distribution of Values is normal with a mean of 13.5 and a Standard deviation of 543. find the probability that a wrandomly Selected Value is between 68 . 07 and 111 . 51 P C 68 . 0 7 2 x 111.51 ) 2) Suppose the random variable x is normally distributed with a mean of 81 and a Standard deviation 9 Let 7 be distributed according to Standard normal distribution . them P ( 7 1 01