Collisions between birds and airplanes are a major problem, threatening passenger safety and resulting in costly repairs During the years 1990 - 1994 researchers gathered bird remains from runways at Lihue Airport on the island of Kauai, Hawaii. The data below are counts of birds found on the runway used for takeoffs from the 4 most frequently involved species: Zebra dove: 35 Mannikin spp.: 50 Plover: 20 Barn-owl: 35 Construct a relative frequency distribution ( table) representing the bird species data (write two columns; 1st column : bird species, 2nd column: relative frequencies)