This data is from a sample. Calculate the mean, standard deviation, and variance. x 16 39.2 31.8 40.9 48.3 49.7 24.8 31.3 32.2 Please show the following answers to 2 decimal places. Sample Mean = Sample Standard Deviation = Sample Variance = Ooops - now you discover that the data was actually from a population! So now you must give the population standard deviation. Population Standard Deviation =
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.
This data is from a sample. Calculate the mean, standard deviation, and variance.
| x | 16 | 39.2 | 31.8 | 40.9 | 48.3 | 49.7 | 24.8 | 31.3 | 32.2 |
|---|
Please show the following answers to 2 decimal places.
Sample Mean =
Sample Standard Deviation =
Sample Variance =
Ooops - now you discover that the data was actually from a population! So now you must give the population standard deviation.
Population Standard Deviation =
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