In a lottery, numbered balls from 1 through 69 are placed into a spinning drum. Every 10 seconds a ball rolls down a tube to become one of the eight numbers to be drawn. At the end of the draw, the remaining 61 balls have an equally likely chance of becoming the bonus number. What is the name of this method of sampling?1. Simple random sampling
2. Systematic random sampling
3. Stratified random sampling
4. Convenience sampling

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.