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null hypothesis

noun
🔊/ˈnʌl haɪpɒθəsɪs/
🔊/ˈnʌl haɪpɑːθəsɪs/
 (statistics统计)
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  1. the idea that an experiment that is done using two groups of people will show the same results for each group零假设，原假设，虚无假设（即用两组人分别实验而结果相同）Topics Scientific researchc2