Here is some sample data that is already in a stem-and-leaf plot: 1 | 6 2 | 3 | 0 1 4 | 5 5 5 7 5 | 1 2 2 6 9 6 | 5 6 7 7 Find the following, up to 3 decimal places where necessary. a. Mean b. Median c. Standard Deviation d. Range
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.
Here is some sample data that is already in a stem-and-leaf plot:
1 | 6
2 |
3 | 0 1
4 | 5 5 5 7
5 | 1 2 2 6 9
6 | 5 6 7 7
Find the following, up to 3 decimal places where necessary.
a. Mean
b. Median
c. Standard Deviation
d. Range
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