题目内容:
A sample of 10% of ACCA students is required. Which ONE of the following methods will provide the best simple random sample?
ASelect every tenth ACCA student to arrive at their college/institute on one specific day.
BSelect randomly, using random number tables, one in ten of every ACCA class.
CSelect 10% of colleges/institutions providing ACCA courses, then from these chooseall students who are registered with ACCA.
DSelect 10% of all students registered with ACCA, giving each a chance of 0.1 of being picked.
答案解析: