They can also cause erosion and weathering and landslides
The test statistics which will be used here is standard deviation.
<h3>What is standard deviation?</h3>
The standard deviation is a statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance. The standard deviation is calculated as the square root of variance by determining each data point's deviation relative to the mean.
A volatile stock has a high standard deviation, while the deviation of a stable blue-chip stock is usually rather low.
Thus, Option D is true, as standard deviation is the test statistics which will be used here.
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I think the answer would be A.
External validity
Sigmund freud's psychoanalytic theory was based primarily on descriptive data from a few case studies. Critics question how well the experiences of these unusual individuals represent others. The concern referred to is that this type of research may lack external validity.
External validity is the extent to which the information and theories of a study can be generalized to other conditions or to other people. People, places and times are the three major threats ( factors that could be wrong) to external validity
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For the researcher to be able to effectively study how the amygdala reacts when participants watch emotional videos, he can use FMRI technology to answer this question.
<h3 /><h3>Functional Magnetic Resonance</h3>
It is a technique that is based on measuring brain activity according to changes in blood flow, because when an area of the brain is active, there is also an increase in blood flow to that area.
This exam is effective for mapping activities in the brain of humans and animals, through the analysis of images that show a change in blood flow according to a certain exposure of the individual.
It is necessary to use contrast to perform this exam, which can also be useful for electroencephalography and brain physiology exams.
The correct answer is:
- Functional Magnetic Resonance Imaging (FMRI)
Find out more about Functional Magnetic Resonance here:
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