The following data compares the amount of trees in a given square mile and the number of crime committed in that same square mile. Trees Cause Crime! Trees per mi? Crimes per mi? 356 50 478 82 50 13 247 54 97 33 511 387 234 52 192 24 400 115 More Trees! More Crime! 160 140 120 100 80 60 40 20 100 200 300 400 500 600 Trees Per Square Mile Crimes Per Square Mile
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.
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