from statistics import *
print(mean([1, 2, 3, 4, 4]))
print(harmonic_mean([2.5, 3, 10]))
print(median([1, 3, 5]))
print(median_low([1, 3, 5]))
print(median_high([1, 3, 5]))
print(median_grouped([52, 52, 53, 54]))
print(median_grouped([1, 3, 3, 5, 7], interval=1))
print(median_grouped([1, 3, 3, 5, 7], interval=2))
print(mode([1, 1, 2, 3, 3, 3, 3, 4]))
print(mode(["red", "blue", "blue", "red", "green", "red", "red"]))
print(pstdev([1.5, 2.5, 2.5, 2.75, 3.25, 4.75]))
print(stdev([1.5, 2.5, 2.5, 2.75, 3.25, 4.75]))
print(variance([2.75, 1.75, 1.25, 0.25, 0.5, 1.25, 3.5]))
