Of the 58 students enrolled in a statistics class last semester, 37 worked during the semester and 28 used the recommended textbook. Report answers accurate to 4 decimal places. If two students were selected from the class, one after the other and without replacement, what is the probability that: a. the second student used the recommended textbook given the first student also, did? b. both students worked during the semester? c. only the first student used the recommended textbook (the second student did not)? d. neither of the two students worked during the semester?