Five Statistical Summary

1-First Quartile

The lower half of the data set. one-fourth(25%) of the data set lies below the first quartile . Three-fourth(75%) of the data lies above the first quartile.

2-Third Quartile

The upper half of the data set. three-fourth(75%) of the data set lies below the third quartile . one-fourth(25%) of the data lies above the third quartile.

3-Median : Second Quartile

The median of the entire data set. one-half(50%) of the data set lies below the second quartile . one-half(50%) of the data lies above the second quartile.

4-Minimum

5-Maximum

6-Whisker

7-The lower fence

8-The upper fence

The interquartile range

The difference between 75th and 25th percentiles, or between upper and lower quartiles.

Summary

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