这个怎么求方差呢

这个怎么求方差呢

 

 

>>> lst=[]
>>> str=input("Please enter 10 integers delimited by space:")
Please enter 10 integers delimited by space:1 2 3 4 5 6 7 8 9 10
>>> list1=str.split(" ")
>>> lst=[int(i) for i in list1]
>>> s=sum(lst)
>>> print(s)
55
>>> avg=s/10
>>> print(avg)
5.5
>>> lst2=[(i - avg)**2 for i in lst]
>>> b=sum(lst2)/10
>>> print(s, avg, b)
55 5.5 8.25
>>>

 

第15行，用lst而不是list1