import pandas as pd
import numpy as np

base = pd.read_csv('iris.csv')

amostra = np.random.seed(154)

amostra = np.random.choice(a = [0, 1], size = 150, replace = True, p = [0.5, 0.5])

#len(amostra[amostra == 1])
#len(amostra[amostra == 0])