Lemma
MediumContinuous distributions
OpenStax, Introductory Business Statistics 2e §5.3 The Exponential Distribution · Exercise 36 · Probability · Continuous distributions

The Exponential Distribution · Exercise 36

In major league baseball, a no-hitter is a game in which a pitcher, or pitchers, doesn't give up any hits throughout the game. No-hitters occur at a rate of about three per season. Assume that the duration of time between no-hitters is exponential.

(a) What is the probability that an entire season elapses with a single no-hitter?
(b) If an entire season elapses without any no-hitters, what is the probability that there are no no-hitters in the following season?
(c) What is the probability that there are more than 3 no-hitters in a single season?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

~8 minWritten answer · check your work with Lemma

OpenStax, Introductory Business Statistics 2e · §5.3 The Exponential Distribution · Exercise 36

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.