Answer Happy

Random sample of college students, 18-24, weekly tv watching
habits.
1) Group the data using classes provided
2) Calculate mean and standard deviation using the original
data, not the grouped data
Hours watched weekly 0 2.9 7.8 8.6 9.7 9.9 16 17.5 18.5 19 19.1 19.5 20.4 21 22.9 lower class upper class freq 0 4.9 5 9.9 10 14.9 15 19.9 20 24.9 25 29.9 30 34.9 35 39.9 23.5 25.6 25.8 28.9 29.6 30.5 33.8 36.1 36.8 39.2