📖 Background The principal of a large school is interested in knowing if the test preparation courses are helpful and also know the effect of parental education level on test scores. 💪Objectives What are the average reading scores for students ...

📖 Background A crowdfunding site wants to run a marketing campaign for the next quarter of the year. The marketing manager wants to target those segments that have donated the most in the past year. Objectives What are the top three categories in terms of total donations? What device type has ...