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# Time Series

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### Time Series

1. 1. Warm up<br />Debbie has borrowed \$2,700, and will pay \$75 every month until she has repaid the amount. Paul has borrowed \$3,000 and will pay \$100 every month.<br />Write and solve an inequality showing how many months it will be until Paul owes less than Debbie.<br />Will Paul owe less than Debbie before loans are repaid in full?<br />
2. 2. Warm up<br />Name a number that is 70 when rounded to the nearest ten, is divisible by 2 and 3, and whose digits added together make a perfect square. <br />
3. 3. Time Series!!!!<br />When a set of numerical data is collected at regular time intervals, it can be conveniently displayed in a line graph on coordinate grid<br />
4. 4. Time Series<br />When a quantity is measured in regular time intervals, the data collected are called a time series.<br />
5. 5. Example of Time Series<br />
6. 6. Natural Questions<br />What are the maximum value, minimum value, and range of the quantity being examined?<br />Are there any trends in the data?<br />How fast has the quantity being measured changed from one to next. <br />
7. 7. Rate of Change <br />
8. 8. Time Series in Bar Graphs<br /><ul><li> What are the maximum values, minimum values, and ranges of each of the four quantities being examined in the data above?
9. 9. Describe the trends in the data.
10. 10. Which rates of change are positive, which rates of change are negative</li>