A primatologist records vocalizations from a troop of 30 monkeys. The probability that a randomly selected monkey produces a warning call is 0.4. If she observes 8 monkeys independently, what is the probability that exactly 5 produce a warning call?

Thu, 30 Apr 2026 10:31:42 +0000

**Discover the Numbers Behind Animal Communication: What If Exactly 5 of 8 Monkeys Sound the Alarm?**
Chances are, you’ve stumbled across a fascinating intersection of nature, data, and the science of sound—where risk, chance, and observation meet. A primatologist records vocalizations from a troop of 30 monkeys, tracking how often warning calls emerge—a common study in animal behavior and ecological signaling. With a 40% chance that any single monkey gives an alert when danger arises, researchers ask: if she watches 8 monkeys over a quiet forest hour, what’s the probability exactly 5 respond with a sharp warning? This question isn’t just academic—it’s a puzzle at the heart of behavioral probability, relevant for students, researchers, and anyone curious about data-driven nature studies. --- ### Why A Primatologist Records Vocalizations from a Troop of 30 Monkeys Popular science platforms and mental wellness communities increasingly highlight animal communication as a window into survival