Daily-life challenges
How can you assure if a newborn is growing normally?
How can you determine the impact of an additional hour of study in each week on your grade point average?
How can you determine the impact of daily exercise on your performance at school?
Business challenges
How can investors predict the future value of a company’s stock?
How can policy makers investigate the relationship between crime rate and education level?
How can a real estate agent value a house based on the recent houses sold in the area?