For nos. 5-6, refer to the following data: 12, 4, 6, 6, 5,8, 4, 8, 5, 6, 9, 5, 9, 6, 7, 5, 5, 6, 6,9 5. Give the frequency of the score 5. а. 3 b. 4 c. 5 d. 6 6. What is the frequency of the score 9? а. 3 b. 4 C. 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.
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