Here's the question you clicked on:
ns36
The production manager at a local manufacturing plant is concerned about work stoppages in the four production lines. In particular, the manager is evaluating the likelihood of the next stoppage occurring on production line 1. 1. Based on previous stoppage records, the manager figures that the probability that production line 1 is stopped next is 25%. This is an example of: (a) Bayesian probability (b) relative frequency probability (c) subjective probability (d) classical probability
i don't know what "subjective" probability means, but it says "based on previous stoppage records" so she has counted how many stoppages there are. this is "relative frequency"