Skip to content

ZIMSEC O-Level Additional Mathematics

6.2.7Estimation

Estimation in ZIMSEC O-Level Additional Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Topic38 practice questions2 lessons

In this topic

Lessons

  • Point estimates: unbiased estimators of the mean and variance

    40 min

    Full access
  • Confidence intervals for a population mean

    45 min

    Full access

Join to read every lesson, or see what Full access includes.

Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Estimation: sample question

1 mark

A population has standard deviation 14. A random sample of 49 is taken. Find the margin of error of a 95% confidence interval for the population mean.

Only if the answer has a unit, e.g. cm or km/h.

Turn Estimation into a strength.

Practise with instant marking, see your mastery grow and get a study plan built around your exam date.