"Cajera" "Frecuencia"
"A" 10
"A" 4
"A" 6
"A" 5
"A" 7
"A" 9
"A" 3
"A" 3
"A" 2
"A" 3
"B" 4
"B" 6
"B" 5
"B" 3
"B" 3
"B" 1
"B" 5
"B" 2
"B" 3
"B" 9