This data is from a sample. Calculate the mean, standard deviation, and variance. x 47.5
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.
question 15
This data is from a sample. Calculate the mean, standard deviation, and variance.
| x | 47.5 | 31.9 | 27.4 | 18.3 | 41.2 | 13.1 | 48.5 | 25.6 |
|---|
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.
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