The following is data for the first and second Quiz scores for 8 students in a class. First Quiz Second Quiz 11 10 18 18 19 18 23 22 28 25 29 26 32 27 42 37 Plot the points in the grid below, then sketch a line that best fits the data. 50+ 45 40 35 30 25 20- 15 10 5 10 15 20 25 30 35 40 45 50
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.
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