The number of congress-persons for each of the 50 states is listed below (10 values per row). 1 1 1 1 1 1 1 2 2 2 2 2 3 3 3 4 4 4 4 4 4 5 5 6 6 6 7 7 7 8 8 8 8 9 9 9 9 10 11 12 13 14 14 16 17 18 27 27 36 63 1) Find the percentile for x=14. 2) Find the 90th Percentile.
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.
The number of congress-persons for each of the 50 states is listed below (10 values per row).
1 1 1 1 1 1 1 2 2 2
2 2 3 3 3 4 4 4 4 4
4 5 5 6 6 6 7 7 7 8
8 8 8 9 9 9 9 10 11 12
13 14 14 16 17 18 27 27 36 63
1) Find the percentile for x=14.
2) Find the 90th Percentile.
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