A Daycare Center Operator Wanted to Survey Her Parents to Determine

Multiple Choice

A daycare center operator wanted to survey her parents to determine if they were interested in the center providing once-a-month Saturday night care for their children. Rather than survey all 254 parents, the operator took the list of parents' names and, starting with the third parent's name, surveyed every twelfth parent. What type of sampling did the daycare operator use?

A) simple random sampling
B) convenience sampling
C) stratified sampling
D) systematic sampling
E) nonprobability sampling