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import numpy as np
n,m = map(int, input().split()) a= [] for i in range(n): a.append(list(map(int, input().split()))) print(np.mean(a, axis = 1)) print(np.var(a, axis = 0)) print(round(np.std(a),11))
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Mean, Var, and Std
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import numpy as np
n,m = map(int, input().split()) a= [] for i in range(n): a.append(list(map(int, input().split()))) print(np.mean(a, axis = 1)) print(np.var(a, axis = 0)) print(round(np.std(a),11))