95%信賴區間的Z:-1.96 ~ +1.96
90-5*1.96=80.2
90+5*1.96=99.8
信賴區間68% +-3S
95% +-2S
99.7% +-1S
42.某生接受某智力測驗之智商為 90,若該測驗之測量標準誤為 5,則該生 95..-阿摩線上測驗
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