# 2105.py
execfile('../libreria/alfa.py')

x=[4,5,6,7,8,9,10,11,12,13,14]
yI=[4.26,5.68,7.24,4.82,6.95,8.81,8.04,8.33,10.84,7.58,9.96]
yII=[3.10,4.74,6.13,7.26,8.14,8.77,9.14,9.26,9.13,8.74,8.10]

print '%.2f %.2f %.2f' %(media(x),media(yI),media(yII))
# 9.00 7.50 7.50

(a,b)=rereg(x,yI)
print '%.2f %.2f %.2f' %(a,b,corr(x,yI))
# 0.50 3.00 0.82

(a,b)=rereg(x,yI)
print '%.2f %.2f %.2f' %(a,b,corr(x,yII))
# 0.50 3.00 0.82

(a,b,c)=pareg(x,yII)
print '%.3f %.3f %.3f' %(a,b,c)
# -0.127 2.781 -5.996