Tim Gan Math
Sign up free

2013 CJC P2 Q8

2013 CJC P2 Q8

4 marks

A school bought Upads for JC1 students to use in Project Work lessons. On average, \(3\)% of the Upads are faulty. Faults occur independently and randomly.

  1. In a sample of \(25\) Upads, find the probability that more than \(2\) Upads are faulty.[2]
  2. Three samples of \(25\) Upads are taken. Find the probability that there are more than two faulty Upads in one sample and exactly one faulty Upad in each of the other two samples.[2]

Solution:

Solution locked

680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs a course plan.

Create free accountSign inGet the H2 Math course · from S$39.98/moH2 Math tuition

Create a free account to practise similar questions.

Create free accountSign inGet the H2 Math course · from S$39.98/moH2 Math tuition
Answer:(i) \(0.0380\). (ii) \(0.0148\).

Need help? Join our JC Math tuition classes.

Learn more