A first-order autoregressive model for stock sales is:
If sales in 2008 is 6000, the forecast of sales for 2009 is ________.
Definitions:
Carbon
A chemical element with symbol C and atomic number 6, essential to all known living systems and the basis for organic chemistry.
Glaciers Melt
The process by which glaciers lose their ice mass to the surrounding water and air, contributing to sea-level rise and changes in global water cycles.
Isotopes of Oxygen
Variants of oxygen atoms with the same number of protons but different numbers of neutrons, leading to different atomic masses.
Ancient Earth
Refers to the geological and biological conditions of Earth in its early history, millions to billions of years ago.
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