=PROMEDIO(B3:D8)
=SUMA(B3:B8)
=CONTAR(B3:D8)
=SUMA(B3:B5, B6:D7)
=SUMA(B4:D5, B8:D8)
=CONTAR.SI(B3:D8, "<3000")
=CONTAR.SI(B3:D8, ">3000")
