Find the mean for the scores in the following frequency distribution table: Number Frequency Cumulative Frequency 53 18 52 17 51 14 50 12 49 7 47 3
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.
Find the mean for the scores in the following frequency distribution table:
|
Number |
Frequency |
Cumulative Frequency |
|
53 |
18 |
|
|
52 |
17 |
|
|
51 |
14 |
|
|
50 |
12 |
|
|
49 |
7 |
|
|
47 |
3 |
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