In an experiment college students were given elther four quarters or a 1 bill and they could elther keep the money or spend it on gum The results are summarized in the table Complete parts a through c below Students Given Four Quarters Students Given a 1 Bill Purchased Gum 31 16 Kept the Money 12 29 a Find the probability of randomly selecting a student who spent the money given that the student was given four quarters The probability is Round to three decimal places as needed