In a new study on College lifestyle, a professor at K decides he will survey K students on how their lifestyles are. To get his sample the professor goes through the school's directory and picks every 25th student to use for the survey. This type of sample is:
A) Stratified random sample
B) Systematic sample
C) Cluster sample
B) systematic sample... because it started with a random sample and then he picked every 25th student
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