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CXC CAPE · · Applied Mathematics

Confidence intervals
Practice Questions

6 CXC CAPE Applied Mathematics questions on Confidence intervals, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Confidence intervals

Question 1 · 1 mark · Difficulty 3/3

A confidence interval gives a range of plausible values for a population:

  1. sample
  2. residual
  3. parameter
  4. statistic
Show answer & explanation
✓ Answer: Cparameter
CIs estimate a parameter.
Question 2 · 1 mark · Difficulty 3/3

A 95% confidence level means that about 95% of such intervals would:

  1. contain the sample mean
  2. capture the true parameter
  3. be identical
  4. have the same width
Show answer & explanation
✓ Answer: Bcapture the true parameter
95% of intervals capture the parameter.
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20 questions · 25 min · free

CXC CAPE Applied Mathematics: Confidence intervals FAQ

How many CXC CAPE Applied Mathematics questions on Confidence intervals are there on Kramizo?
Kramizo currently has 6 exam-board-aligned practice questions on Confidence intervals for CXC CAPE Applied Mathematics, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CXC CAPE paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CXC CAPE students preparing for Applied Mathematics?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Confidence intervals practice with other Applied Mathematics topics or even switch to a totally different CXC CAPE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Confidence intervals questions aligned to the official CXC CAPE Applied Mathematics syllabus?
Every question is written against the published CXC CAPE Applied Mathematics specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CXC CAPE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CXC CAPE.
How is Confidence intervals typically tested on CXC CAPE Applied Mathematics papers?
Confidence intervals appears across multiple question types on real CXC CAPE Applied Mathematics papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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