1) Round all your answers to 3 digits after the decimal point. School days: The following table presents the numbers of wtudenta enrolied in grades 1 thrayp 5 im fublic achoolt a certain country: Consider these students to be o population. Let X t be the grade of a itudent randomly chasen from this population (a) Construct the probability distribution of X. 3 points (b) Find the probability that the student is in eighth grade. 1 point 1 (c) Find the probability that the student is in seventh or eighth grade. 3 point.