Get a sample of 4 people at ACM and give their ages. Note: If you do not have a sample of 4 ACM students, then make them up. Not all 4 ages can be the same. Person 1 is years old. Person 2 is years old. Person 3 is years old. Person 4 is years old. What is the mean of these ages? What is the standard deviation of these ages?
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.
Get a sample of 4 people at ACM and give their ages. Note: If you do not have a sample of 4 ACM students, then make them up. Not all 4 ages can be the same.
Person 1 is years old.
Person 2 is years old.
Person 3 is years old.
Person 4 is years old.
What is the mean of these ages?
What is the standard deviation of these ages?
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