Arithmetic mean
Median position
Range
range = xmax − xmin
Interquartile range
IQR = Q3 − Q1
Standard deviation
Probability of two independent events co-occurring
P(A ∩ B) = P(A and B) = P(A) × P(B)
Probability of at least one event occurring
P(A ∪ B) = P(A or B) = P(A) + P(B) − P(A and B)
Slope