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Update README.md

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Auto MPG Data Set/README.md
......@@ -22,18 +22,21 @@ This *intermediate* level data set has 398 rows and 9 columns and provides milea
### <span style="color:#15A3D8">Data Dictionary</span>
|**Column Position**|**Attribute Name**|**Description** |**Examples** |**Attribute Type** |**Nulls Ratio** |
|-------------------|------------------|------------------------------------------------------------|---------------------------|---------------------|----------------|
| #1 | mpg | fuel efficiency measured in miles per gallon (mpg) | 9.0, 13.0, 41.5 | quantitative | 0% |
| #2 | cylinders | number of cylinders in the engine | 3, 4, 8 | qualitative | 0% |
| #3 | displacement | engine displacement (in cubic inches) | 68.0, 112.0, 455.0 | quantitative | 0% |
| #4 | horsepower | engine horsepower | 46.0, 70.0, 230.0 | quantitative | 2% |
| #5 | weight | vehicle weight (in pounds) | 1613, 3615, 5140 | quantitative | 0% |
| #6 | acceleration | time to accelerate from O to 60 mph (in seconds) | 8.00, 15.50, 24.80 | quantitative | 0% |
| #7 | model year | model year | 73, 79, 82 | qualitative | 0% |
| #8 | origin | origin of car (1: American, 2: European, 3: Japanese) | 1, 2, 3 | qualitative | 0% |
| #9 | car name | car name | audi fox, subaru | qualitative | 0% |
|*Column Position* |*Attribute Name* |*Description* |*Examples* |*Attribute Type* | *Nulls Ratio* |
|------------------|------------------|----------------------------------------------------------|-------------------------|-------------------|---------------|
| #1 | mpg | fuel efficiency measured in miles per gallon (mpg) | 9.0, 13.0, 41.5 | quantitative | 0% |
| #2 | cylinders | number of cylinders in the engine | 3, 4, 8 | qualitative | 0% |
| #3 | displacement | engine displacement (in cubic inches) | 68.0, 112.0, 455.0 | quantitative | 0% |
| #4 | horsepower | engine horsepower | 46.0, 70.0, 230.0 | quantitative | 2% |
| #5 | weight | vehicle weight (in pounds) | 1613, 3615, 5140 | quantitative | 0% |
| #6 | acceleration | time to accelerate from O to 60 mph (in seconds) | 8.00, 15.50, 24.80 | quantitative | 0% |
| #7 | model year | model year | 73, 79, 82 | qualitative | 0% |
| #8 | origin | origin of car (1: American, 2: European, 3: Japanese) | 1, 2, 3 | qualitative | 0% |
| #9 | car name | car name | audi fox, subaru | qualitative | 0% |
......
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