hannahbaker2 hannahbaker2
  • 26-05-2017
  • Mathematics
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PLEASE HELP ! I WILL REWARD BRAINLIEST !!

PLEASE HELP I WILL REWARD BRAINLIEST class=

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GhostieCupcakes
GhostieCupcakes GhostieCupcakes
  • 31-05-2017
every fifth student = systematic
5 random students = random
used the only ones that were = voluntary
survey to different grades = stratified 
first 10 students she saw = Convenience  
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