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#!/usr/bin/python3
import sys
# if len(sys.argv) != 2:
# print("Wrong number of arguments.")
# print("USAGE: ./calc_stats.py <input_file>")
# quit()
files = ["112_count.txt", "16_count.txt", "48_count.txt", "80_count.txt", "sweep_count.txt"]
for input_file in files:
print(input_file)
f = open(input_file)
X = [int(i) for i in f.readlines()]
mean = float(sum(X))/len(X)
stddev = float(sum([x**2 for x in X]))/len(X) - mean**2
print("{0:.2f}".format(mean) + " " + "{0:.2f}".format(stddev))
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