1) lottery method. To do this, 1. write the name of each Member in the label. 2. determine the number of samples 3. apply the label put on the box and then randomly picks up as the number of samples.
1) How to draw done by 1. Write down the names of all members in the label 2. Determine the number of samples 3. The label on the box and then randomly picked up. The full amount of the sample
1) how to compose the 1. Write the name of all the members in the label 2. Determination of the sample 3. The intelligent box from random pick up. Complete the sample .