题解 | 计算样本峰度
计算样本峰度
https://www.nowcoder.com/practice/2d0297ff164b4a19951d54ffc06ad728
n=int(input())
nums=list(map(int,input().split()))
avg=sum(nums)/n
print(f'{sum((x-avg)**4 for x in nums)*n/(sum((x-avg)**2 for x in nums))**2-3:.2f}')
计算样本峰度
https://www.nowcoder.com/practice/2d0297ff164b4a19951d54ffc06ad728
n=int(input())
nums=list(map(int,input().split()))
avg=sum(nums)/n
print(f'{sum((x-avg)**4 for x in nums)*n/(sum((x-avg)**2 for x in nums))**2-3:.2f}')
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