We thus obtained a subsample of 6 machines, made up of 1 with a mixed range 16.7%, due to this being the least frequent in the original sample, 2 with food 33.3% and 3 with drink 50%.
Por tanto, obtuvimos una submuestra de 6 máquinas: 1 mixta 16,7% por ser la menos frecuente de la muestra original, 2 de comida 33,3% y 3 de bebida 50%.