You are using the table of random digits to choose a simple random sample of six students from a class of 30 students. You label the students 01 to 30 in alphabetical order, and then select a simple random sample.
Which is a possible sample that could be obtained?
04, 18, 07, 13, 02, 05
07, 18, 31, 13, 02, 07
45, 74, 04, 18, 07, 65
04, 18, 07, 13, 02, 07