Answer:
The answer is below
Explanation:
Z score is a score used in mathematics to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:
[tex]z=\frac{x-\mu}{\sigma}\\\\where\ x=raw\ score, \mu=mean,\sigma=standard\ deviation. \\\\For\ a\ sample\ size(n):\\\\ z=\frac{x-\mu}{\sigma/\sqrt{n} }[/tex]
The area under the curve is dependent on the z score. The higher the z score, the higher the area under curve and the lower the z score, the lower the area under curve.
a) The area under curve (z score) is inversely proportional to the standard deviation. If the standard deviation is increased, the z score decreases thereby reducing the area under the curve.
b) If the standard deviation is decreased, the z score increases thereby increasing the area under the curve.
How is a digital representation of analog data a form of abstraction?
Answer:
For this reason, analog representations are sometimes associated with the act of perception and digital representations with the act of cognition (e.g. by Devlin 1991). Typically, digital representations provide better access to information of interest than do analog representations.
Explanation:
What type of data assists in the study of population demography?
Answer:
Demographic data is statistical data collected about the characteristics of the population, e.g. age, gender and income for example. It is usually used to research a product or service and how well it is selling, who likes it and/or in what areas it is most popular.
Explanation: