Wize AP Statistics Textbook > Presenting Quantitative Data
Time Series Plots
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Time Series Plots
A time series plot displays quantitative values against an interval of time. It allows you to observe any seasonality (ups and downs within time periods) or trends over time.
- On the x-axis we plot the time increments or date
- On the y-axis we plot the quantitive value measured
What two things do you observe in the above time series plot?
1. Seasonality
2. Upward trend over time
Vinnie sells cashmere scarves all year round. His sales are shown in a time series:
Which histogram matches the time series plot above?