Practice variation 1 of 3
Binomial distribution — Smaller flight
Your question
Seats 100, show-up probability 0.9, allow at most 5% chance of overflow. Outline the normal approximation inequality for tickets .
This practice question was inspired by Question 14(d) in the 2022 NSW HSC Mathematics Extension 1 examination, © NESA. It is an original TestMum variation that practises the same mathematical idea, not an official NESA question.
Before you check
- Have you stated every choice or assumption?
- Can another student follow each line?
- Did you verify the final result independently?