Managing Data Analysis | Online Course Support

You and your team are interested in predicting home prices in a city based on a variety of features of the house (e.g. square footage, acreage, number of bedrooms, etc.). One of your analyst suggests this may be difficult because we don’t understand very well the causal relationship between house features and the price of the house. He asks whether the team should proceed with the analysis.

ByAdmin September 11, 2021September 11, 2021

Question 3

How might you respond to this?

1 / 1 point

The analysis cannot go forward until we develop a better understanding of the causal relationships between the house features and the house price.

The analysis can proceed because in a prediction analysis, we care less about the exact mechanisms underlying the relationships between the features and the outcome, as long as we can build a model with good prediction skill.

The analysis can move forward after we do an associational analysis of square footage and house price.

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Online Course Support | Understanding Einstein: The Special Theory of Relativity

Let Bob have a spaceship with a clock at each end, both of which are synchronized in his frame of reference. Alice has an identical spaceship with a clock at each end, both of which are synchronized in her frame of reference. Her spaceship is docked at the local spaceport, with the front end pointed to the right (positive x direction). Meanwhile, Bob flies by in his ship at a speed V heading to the right (positive x direction). Alice observes Bob’s clocks as he flies by. What does she observe, according to her frame of reference (and lattice of synchronized clocks)? (Tip: Sometimes it helps to draw a picture to visualize what’s going on.)
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