How many individuals had scores in the 70s? The following stem and leaf display shows a distribution of exam scores. Figure 2-7 3 | 24 4 | 659 5 | 1372 6 | 53 7 | 7 Group of answer choices 1 77 7 2
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.
The following stem and leaf display shows a distribution of exam scores.
Figure 2-7
3 | 24
4 | 659
5 | 1372
6 | 53
7 | 7
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