<p>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.</p>
<ol class="i-list"><li><div class="list-item-content"><span class="list-item-text">In a sample of \(25\) Upads, find the probability that more than \(2\) Upads are faulty.</span><span class="inline-marks">[2]</span></div></li><li><div class="list-item-content"><span class="list-item-text">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.</span><span class="inline-marks">[2]</span></div></li></ol>

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.

In a sample of \(25\) Upads, find the probability that more than \(2\) Upads are faulty.

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.

2013 CJC P2 Q8

2013 CJC P2 Q8