A population of N = 8 scores has a mean of M = 10. After one score is removed, the mean is found to be M = 5 What is the value of the score that was added? A X = 45 B X = 35 C X = 50 D X = 80
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.
A population of N = 8 scores has a
| A |
X = 45 |
|
| B |
X = 35 |
|
| C |
X = 50 |
|
| D |
X = 80 |
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