BONUS QUESTION The mean of a series consisting of 4 observations: X. X, Xs, and Xa is 5. If we add 2 to each observation what will be the mean? What will happen to the variance?
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.
![BONUS QUESTION
The mean of a series consisting of 4 observations: X. X, Xs, and Xa is 5. If we add 2 to
each observation what will be the mean? What will happen to the variance?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7f5bf192-141e-41c3-a1be-af0f15ab17c5%2F5530ffe6-8560-4cfc-8c37-85ef95ec1efb%2Fwdj65y.jpeg&w=3840&q=75)
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