"12. 1000 * (Bk - 0.63) ** 2 where Bk is the proportion of Black people by town.\n",
"13. Percentage lower status of the population.\n",
"\n",
"Each one of these input data features is stored using a different scale. Some feature are represented by a proportion between 0 and 1, other features are ranges between 1 and 12, some are ranges between 0 and 100, and so on. This is often the case with real-world data, and understanding how to explore and clean such data is an important skill to develop."
"Each one of these input data features is stored using a different scale. Some feature are represented by a proportion between 0 and 1, other features are ranges between 1 and 12, some are ranges between 0 and 100, and so on. This is often the case with real-world data, and understanding how to explore and clean such data is an important skill to develop.\n",
"\n",
"Key Point: As a modeler and developer, think about how this data is used and the potential benefits and harm a model's predictions can cause. A model like this could reinforce societal biases and disparities. Is a feature relevant to the problem you want to solve or will it introduce bias? For more information, read about [ML fairness](https://developers.google.com/machine-learning/fairness-overview/)."
