2-1 Frequency Tables (pages 54-57) Indicator (s) D1- Read, create, & interpret graphs when appropriate.

The Stats on Statistics Statistics deal with collecting, organizing and interpreting data. Data are pieces of information, OFTEN numerical. Large amounts of data can be organized in a frequency table. A frequency table shows the number of data pieces that fall within given intervals.

Lets Try… Problem: Winning Super Bowl scores from 1983 to 2002 are listed below. Make a frequency table of the data. Winning Scores ScoresTallyFrequency The scale allows you record all the data. It includes the least value and the greatest value. { IIII I IIII III The interval separates the scale into equal parts. The interval is 9. Tally marks are counters used to record items in a group.

Interpret the data Kaley asked her classmates about their favorite types of music. The results are shown in the table. Make a frequency table of the data. Then determine the favorite and least favorite genres of music. Favorite Types of 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, F= Top 40, P=Rap MusicTallyFrequency rock jazz country top 40 rap