OpenStax, Introductory Statistics 2e §6.2 Using the Normal Distribution · Exercise 21 · Statistics · Normal distribution
Using the Normal Distribution · Exercise 21
The length of time it takes to find a parking space at 9 A.M. follows a normal distribution with a mean of five minutes and a standard deviation of two minutes.
Find the probability that it takes at least eight minutes to find a parking space.
(a) 0.0001
(b) 0.9270
(c) 0.1862
(d) 0.0668
OpenStax, Introductory Statistics 2e · §6.2 Using the Normal Distribution · Exercise 21
Stuck? A gentle nudge
No hints for this one.
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.