Systematic Random Sampling - The countries are listed in alphabetical order, the 2nd country is taken and every 4th country taken to get a sample of 10 countries as follows: Algeria Canada Egypt India Italy Morocco Peru Russian Federation Sudan Ukraine Simple Random Sampling - The countries are given numbers in alphabetical order and random numbers are generated from 1 to 42. Ten numbers are drawn, if the same number is drawn more than once, another number is drawn to get a sample of 10 countries as follows: Spain Colombia Republic of Korea Philippines China Indonesia Poland United States of America France Turkey explain this