單項(xiàng)選擇題假設(shè)在首次參加CFA考試的中國(guó)考生中,有45%的考生通過(guò)了考試。則在隨機(jī)選擇的30名首次參加考試的中國(guó)考生組成的樣本中,將通過(guò)考試的考生人數(shù)的期望值是多少?()

A、12.45
B、14.00
C、15.36


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