A factory in Malaysia produces electronic components. Quality control records show that 4 out of every 250 components are defective. A component is selected at random. What is the probability that it is defective?

Q: How do I try a free CIE Mathematics question?

Just tap any of the four options on this page — no signup, no card, nothing to install. You'll see the correct answer and a full mark-scheme-style explanation within a second. Each visit shows a fresh randomly-picked question from the live CIE IGCSE Mathematics bank, so you can keep refreshing to try different ones before deciding whether to create a free account for daily access.

Q: Is Kramizo really free for CIE Mathematics students?

Yes — completely free. Every student gets 45 questions a day on the free plan, across any board and any subject, with no card required and no trial countdown. Kramizo's optional Pro plan removes the daily cap and adds analytics, but the free plan is genuinely free forever. We make money from the small percentage of students who choose to upgrade — not from selling data or ads.

Q: Are the Mathematics questions aligned to the CIE IGCSE syllabus?

Every question is written against the published CIE IGCSE Mathematics syllabus and reviewed for accuracy before being added to the bank. We match the command words (state, describe, explain, evaluate), mark allocations, and difficulty tier you'll see on real CIE past papers. Explanations are written in the style of official examiner mark schemes so students learn exactly what marks are being awarded for.

Question

A factory in Malaysia produces electronic components. Quality control records show that 4 out of every 250 components are defective. A component is selected at random. What is the probability that it is defective?

Accepted Answer

0.016 — 016. Award 1 mark for correctly calculating P(defective) = 4/250 = 0.016. A is incorrect — this is 4/2500. C is incorrect — this is 4/100. D is incorrect — this is 4/25, which simplifies the fraction incorrectly.

Answer

0.0016

Answer

0.04

Answer

0.016

Answer

0.16

One real Mathematics question.No signup. 30 seconds.

One real Mathematics question.
No signup. 30 seconds.