题目
If the probability of a manager outperforming the median manager is determined to be 58%, the number of quarters over the next three years that the manager is expected to outperform the median manager is closest to:
选项
A.5 quarters
B.7 quarters
C.9 quarters
D.11 quarters
答案
B
解析
Ifoutperforming the median manager is considered a success, and underperformingthe median manager is considered a failure, this problem can be solved usingbinomial probability. The expected value would be the number of periods (12)multiplied by the probability of success (58%), which yields approximately 12×58%=7 12×58%=7 quarters.如果将中位数以上经理的表现视为成功，而将中位数以下的经理的表现视为失败，则可以使用二项式概率来解决此问题。期望值是周期数（12）乘以成功概率（58％），得出的概率约为12×58％= 7个季度.