Approximate the measures of center for following GFDT. Data Frequency 30 - 34 2 35 - 39 0 40 - 44 14 45 - 49 20 50 - 54 13 Report mode and median accurate to one decimal place. Report the mean accurate to two decimal places (or enter as a fraction). (a) mode = (b) median = (c) mean =
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.
Approximate the measures of center for following GFDT.
| Data | Frequency |
|---|---|
| 30 - 34 | 2 |
| 35 - 39 | 0 |
| 40 - 44 | 14 |
| 45 - 49 | 20 |
| 50 - 54 | 13 |
Report
(a) mode =
(b) median =
(c) mean =
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