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  1. CO_02.jpg

  2. 2.3 Further Graphs and Tables for Quantitative Data Objectives: By the end of this section, I will be able to… 1) Build cumulative frequency distributions and cumulative relative frequency distributions. 2) Create frequency ogives and relative frequency ogives. 3) Construct and interpret time series graphs.

  3. Section 2.3 Further Graphs and Tables for Quantitative Data

  4. Frequency Polygon • Uses dots to plot the CLASS MIDPOINTS • It is NOT a line graph • Can be found in the financial section of newspapers/internet

  5. Frequency Polygon • Create a frequency polygon by hand • Label all your axes • Connect your dots! 2 (0 + 4) / 2 7 (5 + 9) / 2 12 (10+14) / 2 17 (15+19) / 2 22 (20+24) / 2

  6. 7 6 5 4 Frequency 3 2 1 10-14 20-24 15-19 0 – 4 5 – 9 Intervals

  7. Cumulative Frequency Cumulative Frequencies gradually add up to the total frequency. Cumulative Frequency Cumulative Relative Frequency # of times arrested Relative Frequency Frequency 0 - 4 11 11 11/28 0.39 0.39 5 - 9 6/28 6 0.21 11 + 6 17 0.39 + 0.21 0.60 10 - 14 0.78 5 5/28 0.18 17 + 5 22 0.60 + 0.18 15 - 19 3 22 + 3 3/28 0.11 0.89 25 0.78 + 0.11 20 - 24 3 3 25 + 3 0.11 28 1.00 0.89 + 0.11

  8. OGIVES Graph that displays cumulative frequency or cumulative relative frequency. Cumulative relative frequency # of Times Arrested

  9. Times Series Plot Graph that displays changes over time. frequency (days, months, years, etc

  10. Times Series Data

  11. Times Series Data • Create a TIMES SERIES PLOT on CALCULATOR