1. Eating Habits Comenius Math and Science Studio

2. Eating Habits Eating Habits Eating Habits

3. Eating Habits

5. Modus The most frequent value. Question 1. : Number of meals daily

6. Eating Habits Median Median The median can be found by arranging all the observation from lowest value to highest value and picking the middle one. Time5:306:006:156:206:306:406:456:587:007:107:15 Frequency51032201515316 7:307:457:558:008:309:009:309:409:4510:0011:0013:00 1111102222331633 Question 2. : Time range (first mail) 92

7. Eating Habits Median pupils

8. Eating Habits Arithmetic mean The arithmetic mean of a list of numbers is the sum of all of the list divided by the number of items in the list. Question 2. : Time range (first – last meal)

9. Eating Habits Standard deviation Is a simple measure of the variability or dispersion of a data set. Question 4. : Amount of vegetables or fruits weekly

10. Eating Habits

11. Relative frequency The relative frequency can be formulate in per cent. Question 3. : Breakfast? Frequency Relative frequency aged 13 - 15aged 16 - 20aged 13 – 15aged 16 - 20 Yes 247139,34%57,72% Irregularly 253440,98%27,64% No 121819,67%14,63% 61123100,00%

12. Eating Habits Question 3. : Breakfast?

13. Eating Habits Polygon of frequency Question 5: Number of days in one week when I have sweets? Number of Days weekly1234567 Frequency4131730231483

14. Eating Habits Histogram Question 6: Number of days in one week when I have meat Number of Days weekly 1234567 Frequency771735453835

15. Eating Habits Circle diagram Question 7: Type of meat which I eat most often Type of meatBeefPorkLambChickenOtherNone Relative frequency3,26%13,59%0,54%79,35%2,72%0,54%

16. Eating Habits Question 10: Kind of drink I have most often