import thinkstats
import math

pumpkin_weights = [1, 1, 1, 3, 3, 591]

print('Mean of the pumpkin is:', thinkstats.Mean(pumpkin_weights))
print('Variance of the pumpkin is:', thinkstats.Var(pumpkin_weights))
print('Standard Deviation of the pumpkin is:', math.sqrt(thinkstats.Var(pumpkin_weights)))

