Q1] For the following table that represent the statistical data for ages and its frequencies. Find the following: the mean, median, mode, mean absolute deviation, standard deviation, and Coefficient of Variance. N: N=19 G: R=(N+7+G) G=2 10. 14 15. 19 20.2425.29 30.34 35.39 40.44 45 49 50. 54
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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