The four sentences (labelled $1, 2, 3$ and $4$) given below, when properly sequenced, would yield a coherent paragraph. Decide on the proper sequencing of the order of the sentences and key in the sequence of the four numbers as your answer.
- Algorithms hosted on the internet are accessed by many, so biases in Al models have resulted in much larger impact, adversely affecting far larger groups of people.
- Though "algorithmic bias" is the popular term, the foundation of such bias is not in algorithms, but in the data; algorithms are not biased, data is, as algorithms merely reflect persistent patterns that are present in the training data.
- Despite their widespread impact, it is relatively easier to fix Al biases than human-generated biases, as it is simpler to identify the former than to try to make people unlearn behaviors learnt over generations.
- The impact of biased decisions made by humans is localised and geographically confined, but with the advent of $\mathrm{Al}$, the impact of such decisions is spread over a much wider scale.