EDA - Visualisation

1. 1. Combine the 2> values
   1. 2. Divide the values by the number of bars being represented for that range
      1. 3. This will create an averaged set of bars across the range (Changing the shape of the histogram)
2. Bars don't have to be the same width - Its all about AREA.... Not HEIGHT

Attachments:

• Distribution Types

1. Bulk of Density
2. Modal Values
3. irregular

1. Mean
   1. Add all the values and divide by the number of values
2. Mode
   1. Most common value
   2. Modal Class vs. Mode Tables. Can appear differently. Class is important. The resolution/number of bars can better determine the mode
3. Median
   1. The middle number
4. Variance = average of squared differences about the mean
   1. Always divide by one less than the sample size - Don't include your mean
   2. Measures the spread of the data
   3. Variance Square Rooted = Standard Deviation
      1. How spread out the data is
         1. Zero = Max & Min's the same
5. Skew - 0 = Symeteric
6. Kurtosis
   1. Tail Fatness - Higher numbers thinner tails