Answer:
a. beliefs
Explanation:
The correct word to use in this case is "beliefs." The word "believe" is correct when used as a verb ("believes" is also accurate when the verb is in present and in the third person). However, in this case, the correct part of speech of the word is noun. Identifying the parts of speech of words can be a useful strategy in order to check our spelling.
Answer:
The conclusion is false, because it is assuming that correlation = causation.
Explanation:
An important principle in statistical analysis is the principle that when correlation exist between two variables or more, it does not mean that one of the variables are causing the other to appear in a certain manner.
Remember that correlation means that you are investigating whether a relationships exists between two variables; in this example, as we can see, it is between the biodiversity in an ecosystem and the population of an insect.
The graph can be said to illustrate the result of the research; that as the biodiversity of the ecosystem goes down, the insect's population goes up. This is a form of negative correlation.
However - we do not know what is the direction of the relationship; the student concludes that as some insects die within the ecosystem, the researched insect's population goes up; assuming that the predator species died off and thus the researched insect's population increases.
Yet, it is also possible for the relationship to go towards the other direction; the researched insect population increases - perhaps by the introduction of a new food source that causes the species' population to increase - and thus, this damages the biodiversity of the ecosystem, making the population go down since it is possible that the researched insect is instead the species which is on top of the food chain at that ecosystem.
To investigate the direction of a relationship, further research need to be done and more sophisticated statistical methods need to be used.
Answer:
In order for oil producers in Sakhalin to decide to export, the world price must be below the domestic price ... FALSE
-As the country begins to export, producer surplus will increase... TRUE
-B/c the oil is produced domestically, residents of Sakhalin will pay less than the world price ... FALSE
-Even after trade is open, the producer surplus and consumer surplus will be equal ... FALSE
Answer:
<h3>d. extraneous.</h3>
Explanation:
Extraneous variables are variables which occur unintentionally while doing a research. When a researcher tries to find if an independent variable has an effect on a dependent variable, they may be chances that unexpected variable might occur which may affect the results of the research.
Here, the researcher who measured aggressive responses by people when exposed to violent and non-violent movies did not take into account the room temperature.
The room temperature may act as an extraneous variable which may have an effect on the result of his experiment.
