Starting salaries Average salaries South Dakota 26,111 South Dakota 34,709 North Dakota 24,872 North Dakota 37,764 Montana 25,318 Montana 39,832 Utah 26,521 Utah 40,007 West Virginia 26,704 West Virginia 38,284 Missouri 29,281 Missouri 40,462 Oklahoma 29,174 Oklahoma 38,772 Louisiana 31,298 Louisiana 40,029 Find the range, variance, and standard deviation of starting salaries for 8 states. Round your answers to at least one decimal place.
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.
| Starting salaries | Average salaries | ||
|---|---|---|---|
| South Dakota |
26,111
|
South Dakota |
34,709
|
| North Dakota |
24,872
|
North Dakota |
37,764
|
| Montana |
25,318
|
Montana |
39,832
|
| Utah |
26,521
|
Utah |
40,007
|
| West Virginia |
26,704
|
West Virginia |
38,284
|
| Missouri |
29,281
|
Missouri |
40,462
|
| Oklahoma |
29,174
|
Oklahoma |
38,772
|
| Louisiana |
31,298
|
Louisiana |
40,029
|
Find the
Range = Maximum observation-minimum observation
Here maximum observation = 31298
Minimum Observation= 24872
Range= 31298-24872
= 6426
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