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Exercise

Invert a Conditional Expectation

It's important to keep in mind that, as with conditional probability, Conditional Expectations are not necessarily equal to their inverse. An Expectation of Column A conditional on Column B might succeed, but its inverse may not. Let's explore that in this exercise.

A Batch connected to the Shein Footwear dataset has already been created and assigned to the variable batch. Great Expectations and pandas are available as gx and pd, respectively.

Instructions 1/2

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  • 1
    • Create and run an Expectation that all values in the star_rating column be equal to 0.0 for rows with null seller_name.
  • 2
    • Create and run an Expectation that all values in the seller_name column be null for rows with star_rating equal to 0.0.