from math import*
from random import*
def echvar(n):
E=[]
for i in range(n):
a=random()
if 0<a<0.25:
G=10
if 0.25<a< . . . . . . :
G=5
if a> . . . . . . . :
G= . . . .
E.append(G)
return(E)
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def moy(E):
S=0
n=len(E)
for i in range(n):
S= . . . .+E[i]
M=S/ . . .
return(M)
**********************************************************************
def interv(k,n):
dedans=0
for i in range(k):
E=echvar(n)
M=moy(E)
if M>4.25-2*4.657/sqrt(n) and M<4.25+2*. . . . . . /sqrt(n):
dedans=. . . . . . . . . . . .
freq= . . . . . . . . /k
return(freq)