Descriptive Analysis
Median: number in the middle
contain outliers
Mode: the most frequent observation
Percentile
“P” or “K”
10th percentile → p = k = 0.10
Quartile
Min = p0
Q1 = p25
Q2 = p50
Q3 = p75
Q4 = p100 or Max
Dispersion: degree of variation in a given variable
Range: Max- Min
Variance : average of the squared differences from the mean, providing insight into the spread of data points
Standard deviation: a measure that quantifies the amount of variation or dispersion in a set of values, indicating how much the individual data points deviate from the mean
Mean absolute deviation: average absolute deviation from this mean
=COUNTA - for categorical functions
=COUNT - for numerical functions
Correlation = 0: No linear relationship