A violin student records the number of hours she spends practicing during each of nine consecutive weeks: 6.2

5.0

4.3

7.4

5.8

7.2

8.4

1.2

6.3

What is the mean number of hours spent practicing per week during this period?

What's for breakfast? all people who ate at a certain restaurant were surveyed as to what they ordered on a particular sunday morning. 40 ate eggs 42 ate sausage 32 ate pancakes 13 ate sausage and eggs 15 ate pancakes and sausage 11 ate eggs and pancakes 6 ate all three items 3 people didn't eat any of the items how many people ate only pancakes? how many people ate at the resturant that morning? how many people didn't eat eggs?