Lift shows how much the base probability increases or decreases when other products are purchased.

Question

Quizplus · Accepted Answer

Lift measures the increase or decrease in the likelihood of one product being purchased when another product is purchased. It is calculated as the ratio of the observed frequency of co-occurrence to the expected frequency of co-occurrence if the two products were purchased independently. Therefore, Lift does show how much the base probability increases or decreases when other products are purchased.

Lift Shows How Much the Base Probability Increases or Decreases