def pop_stats(it, key):
"""Get the population statistics for a key."""
values = list(gen_values_by_key(it, key))
num_values = len(values)
total = sum(values)
mean = total / num_values
std_dev = stats.population_standard_deviation(values)
return mean, std_dev, values
def pop_stats(it, key):
"""Get the population statistics for a key."""
values = list(gen_values_by_key(it, key))
num_values = len(values)
total = sum(values)
mean = total / num_values
std_dev = stats.population_standard_deviation(values)
return mean, std_dev, values