A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen. A simple random sample is meant to be an unbiased representation of a group.
NOTE:
No easier method exists to extract a research sample from a larger population than simple random sampling. Selecting subjects completely at random from the larger population also yields a sample that is representative of the group being studied.
To write 1/6 as a decimal ,you divide 1/6....so u get ..0.1666666..... It goes on so we can take its rounded value..i.e,0.1666667..
Hope i am right!!!!