Use the following cell phone airport data speeds (Mbps) from a particular network. Find the percentile corresponding to the data speed 3.8 Mbps. 0.3 0.3 0.4 0.5 0.5 0.5 0.6 0.7 O 0.1 0.3 0.8 0.9 0.9 0.9 1.1 1.2 1.2 1.3 0.7 0.8 2.1 2.3 2.3 2.3 2.3 2.5 3.4 3.4 3.8 1.7 4.5 4.9 5.3 5.5 6.3 7.3 7.8 8.1 10.6 3.9 10.9 11.6 13.5 13.6 15.2 15.4 15.8 27.9 10.6 10.8 Percentile of 3.8 = (Round to the nearest whole number as needed.)
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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