Population of Towns The data show the population (in thousands) of several towns. 14.6 19.3 10.6 18.9 5.8 6 58.6 26 2.5 30 55.5 5.5 18.3 26.6
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
**NOTE** please see attached picture of graph
Population of Towns The data show the population (in thousands) of several towns.
|
14.6
|
19.3
|
10.6
|
18.9
|
5.8
|
6
|
58.6
|
26
|
2.5
|
30
|
55.5
|
5.5
|
18.3
|
26.6
|
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