names <- c("Sean", "Brad", "Tony", "Jenny", "Ngoc", "Benny", "Jung-Su", "Mark", "Cameron", "Emily", "Tasha", "Soo-Jin", "Justin", "Craig", "Emma") height <- c(70,72,70,63,61,73,69,71,67,70, 62,64,72,77,68) GPA <- c(2.74,3.98,3.6,4,3.6,3.15,3.87,2.99,3.9, 3.59,3.9,3.94,3.8,4,3.9) major <- c("bio", "bio", "bio","bio","bio","bio","bio", "bio","bio","bio", "chem","chem","chem", "phys", "math")

Question: What is the average height of students in the data set, in centimeters? Round your answer to 2 decimal places. i need the answer only.