7.1 7.3 0.4 0.5 4.3 5.2 9.3 4.2 8.3 9.4 8.7 6.1 3.7 8.0 4.8 3.9 5.3 9.8 1.2 6.4 9.8 8.0 6.7 8.4 2.5 5.2 0.7 7.8 9.4 5.9 9.8 7.3 9.6 9.0 7.6 9.7 3.5 9.5 8.8 7.9 6.8
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.
Students at the University of California, Riverside (UCR), along with many
other Californians love their Starbucks! The distances in miles from campus for the 41 Starbucks stores within 10 miles of UCR are shown below:
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Construct a relative frequency to describe the distances from the UCR campus, using 10 classes of width 1,starting at 0.0.
a. What is the shape of the histogram? Do you see any unusual features?
b. Can you explain why the histogram looks the way it does?
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