These are all functions that map a sample of data to a single number, an estimate of a particular target parameter. (View Highlight)
Note: Estimator - function that maps sample to a single data point
First let’s think about the qualities we might seek in an ideal estimation partner, in non-technical language:
“Open-minded data scientist seeking estimator for reasonably accurate point estimates with small-ish confidence intervals. Prefer reasonable performance in small samples. Unreactive to misunderstandings a plus.” (View Highlight)
