1. How do we get across? A woman has two dogs, three rabbits and lettuce. She must cross a river. The boat is too small to carry all in one crossing. If she transported the dogs, the rabbits would eat the lettuce. If she transported the lettuce, the dogs would eat the rabbits. Question: How is she able to transport them all safely?

2. Solution She brings the rabbits across. Leave the rabbits and returns to get dogs. She brings the dogs across and returns with rabbits. She leaves rabbits and goes across with the lettuce. She returns to get rabbits.

3. Lesson 2-1 Frequency Tables

4. Statistics deals with collecting, organizing, and interpreting data. Data are pieces of information, which are often numerical. Large amounts of data can be organized in a frequency table. A frequency table shows the number of pieces of data that fall within given intervals.

5. Frequency Tables Words to Know Price $TallyFrequency 1-254 26-5011 51-757 76-10013 Shows the number of pieces of data that fall within given intervals. Scale- includes the least value and greatest value Interval- Separates the scale into equal parts

6. Make a frequency table Step 1- Choose an appropriate interval and scale. Should include the least and the greatest value. Step 2- Draw a table with 3 columns and label the columns. Step 3- Complete the table.

7. Example Winning Score 20 34 23 34 31 35 27 49 30 52 37 20 55 20 42 39 46 38 38 27 ScoresTallyFrequency 20 - 29 30 - 39 40 - 49 50 - 59 6 9 3 2

8. Example Favorite Music P R F P F F R F P P F P F C P C J R R F J R P P F R= rock J= jazz C= country P= rap F= top 40 MusicTallyFrequency Rock Jazz Country Top 40 5 2 2 8 Rap8

9. Example – Your Turn Movie Rentals 10 9 2 17 12 9 11 10 4 14 3 15 0 6 5 9 20 10 11 8 3 1 13 4 5 RentalsTallyFrequency

10. Example – Your Turn Breakfast Foods e c e p c c c p p e c e c e c p p e c= cereal e= eggs p=pancakes BreakfastTallyFrequency

11. Homework Complete Lesson 2-1 # 1-7 ALL