Question

In a lottery, numbered balls from 1 through 49 are placed into a spinning drum. Every 10 seconds a ball rolls down a tube to become one of the six numbers to be drawn. At the end of the draw, the remaining 43 balls have an equally likely chance of becoming the bonus number. What is the name of this method of sampling?
Simple random sampling
Systematic random sampling
Stratified random sampling
Convenience sampling

Answer 1

Simple random sampling