Approved

python new test framework is required. updated in this fork

Needs random tests.

The description did not mention that subjects with 0 hours of study should not included in the result.

Needs random tests.

Linear regression is a duplicate, e.g https://www.codewars.com/kata/543346bb913a6589fb000744

##Hint Looking up the formulas for linear regression might help to forecast the revenues.

Different estimators will give different forecasts. There is no single correct answer for "forecasting".

If you just want us to implement linear regression, then explicitly tell us, and test for this. Don't make everyone guess.

Sample tests has syntax error.

Ruby 3.0 should be enabled.

If you can decide it isn't, why can't I decide it is?

Not an issue.

Which means they don't run.

That would be an Issue then.

• Do not round floating point values
• No random tests
• Versions need updating

In Python at least, in case of ties, the school location with a smaller id is chosen.

The kata asks you to minimize the "total" traveling distance for potential students, not the "individual" travelling distance for individual students.