In an experiment or survey, relative frequency of an event is the number of times the event occurs divided by the total number of trials. For example, if you observed \(100\) passing cars and ...

The relative frequency of picking a tagged fish is \( \frac{2}{30} \), which is the same as the original \( \frac{80}{𝑵} \). To find the population of fish in the lake the formula 𝑵 ...