Question

The five number summary for the length of duration in minutes of old faithful's eruptions is [1.7, 2.3, 4.0, 4.4, 5.2]. (note: these are not the data.) approximately what percentage of the eruptions last longer than 2.3 minutes?

Answer 1

In the five number summary, the values for minimum, 1st quartile, median, 3rd quartile, and maximum are provided. The value of 2.3 minutes is listed in the position for the first quartile. That means 25% of eruptions lasted less than 2.3 minutes, and 75% lasted longer than 2.3 minutes.