calculate mean by importing mean ,median,moide,variance

 from statistics import mean

print(mean([1,2,3,4,5,6,7]))

 from statistics import median

print(mean([1,2,3,4,5,6,7]))

from statistics import variance

print(variance([1,2,3,4,5,6,7]))

from statistics import mode

print(mode([1,2,3,4,5,6,7]))