Positional Encoding Vector

A data scientist is preparing a dataset to train a model that predicts customer churn. For each of the 50,000 customers in the dataset, they record three features: 'account age in months', 'average monthly spending', and 'number of support tickets filed'. If a single customer is denoted as a data point $\mathbf{x}_i$, which of the following correctly describes its mathematical representation?

Analyzing a Text Representation

Describing a Word Vector