Construct a grouped frequency distribution table (GFDT) for this data set. You want 10 classes with a "nice" class width. A "nice" class width would be a multiple of 5 or 10. Your classes should be labeled using interval notation. Since the data appears to be discrete, use a closed-interval to label each class. Each class should contain its lower class limit, and the lower class limits should all be multiples of the class width. (Note: interval notation for closed intervals will take the following form "[number, number]") 293 297 287 371 301 375 334 370 353 437 335 339 384 352 302 278 356 286 322 304 262 379 300 357 241 315 264 356
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.
Construct a grouped frequency distribution table (GFDT) for this data set. You want 10 classes with a "nice" class width. A "nice" class width would be a multiple of 5 or 10. Your classes should be labeled using interval notation. Since the data appears to be discrete, use a closed-interval to label each class. Each class should contain its lower class limit, and the lower class limits should all be multiples of the class width.
(Note: interval notation for closed intervals will take the following form "[number, number]")
| 293 | 297 | 287 | 371 |
| 301 | 375 | 334 | 370 |
| 353 | 437 | 335 | 339 |
| 384 | 352 | 302 | 278 |
| 356 | 286 | 322 | 304 |
| 262 | 379 | 300 | 357 |
| 241 | 315 | 264 | 356 |
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