Question: Choose which sampling technique is used. (R) Random (STR) Stratified (CLS) Cluster (CON) Convenience (SYS) Systematic _______ 17. There are 250 seventh graders and 300

Choose which sampling technique is used. (R) Random (STR) Stratified (CLS) Cluster (CON) Convenience (SYS) Systematic _______ 17. There are 250 seventh graders and 300 eighth graders at Generic Middle School. We ask 45 seventh graders and 50 eighth graders how many siblings they have to compare the two groups. _______ 18. I ask all freshmen, no sophomores, no juniors, and all seniors if they prefer Vanilla or Cherry Coke (these four groups are my only four groups) to create a study of what should be in the vending machines

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