dentify each distribution as a population distribution or a sample distribution.
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.
Identify each distribution as a population distribution or a sample distribution.
| a. Randomly select a patient after a knee surgery, the distribution of the number of days to recover for the patient. | |
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| b. The distribution of the average age of 12 jurors selected for a jury. | |
| c. A pool conducted surveys 1000 voters for their voting preferences. The distribution of the average income of the people surveyed. | |
| d. A surveyor randomly selects 30 locations to measure the underground water levels. The distribution of the average water level of these 30 locations. |
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