Answer:
Unsystematic Variability
Explanation:
Variability
This refers to a number or measure of the observed differences in the value of a variable that is from one unit of observation to another unit.
Unsystematic variability
This is usually refered to as a type of variability that is unexplainable (not accounted for) for by a one or a known source, but that comes from effects or the combinations of extraneouss variables, measurement error, and noise.
They are the known differences in scores of individuals because of the variable that were not examined. They are usually not related to variables examined. Mostly type 11 error, are within groups variance in experiments and usually leads to high total variability.
California, is one of them.
Answer:
Another important ancient Greek concept that influenced the formation of the United States government was the written constitution. ... The original U.S. voting system had some similarities with that of Athens. In Athens, every citizen could speak his mind and vote at a large assembly that met to create laws
Explanation:
Answer:
The best answer to the question: The following are examples of advances made during the Mesolithic Era, except:___, would be, C: Fishing nets.
Explanation:
The Mesolithic is a period that neatly meets between the Paleolithic Age and the Neolithic. The exact time in different regions of the world, in which this Period began, varies quite a bit. However, there have been some commonaities that have been found among the different groups of people, all of them hunter-gatherers, that lived and subsisted in particularly Northern Africa, Northern Europe and Western Europe, and parts of Asia, as far as it has been known. The first is the use of stone tools, of fine making, called microliths. The second was the advancement in the making of certains artifacts, for various reasons. Among the artifacts that have been found from this time, and that were made by people of this Era, are: pottery (the most common finding), bows and arrows, with which they would hunt, and canoes, small ones, to be able to fish, close to where they lived. The one thing they did not develop until after, was the fishing net.
Answer:
The rock is 3.75 billion years ago.
Explanation:
Given that:
Half life = 1.25 billion years
1 billion years = 10⁹ years
So,
Half life = 1.25 × 10⁹ years
Where, k is rate constant
So,
The rate constant, k = 5.5452 × 10⁻¹⁰ years⁻¹
Initial amount [A₀] = 80 micrograms
Final amount ![[A_t]](https://tex.z-dn.net/?f=%5BA_t%5D)
= 10 micrograms
Using integrated rate law for first order kinetics as:
![[A_t]=[A_0]e^{-kt}](https://tex.z-dn.net/?f=%5BA_t%5D%3D%5BA_0%5De%5E%7B-kt%7D)
So,
So,
<u>The rock is 3.75 billion years ago.</u>
