Skip to content

Course home

Sign up

2.4.12 Calculate probabilities from a Normal distribution (A-level only)

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940
Question 24

The times it takes students to complete a test are normally distributed with a mean of 58 minutes and a standard deviation of 12 minutes.

Find the time by which 90% of students complete the test.

[2]
Markscheme

2.4.12 Calculate probabilities from a Normal distribution (A-level only) Questions

  1. A Level
  2. /Maths
  3. /2.4.12 Calculate probabilities from a Normal distribution (A-level only)

147 exam-style questions on OCR (MEI) A Level Maths 2.4.12 Calculate probabilities from a Normal distribution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

Question bank