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ZIMSEC O-Level Additional Mathematics

6.2.5.1The normal curve, standardising and tables

The normal curve, standardising and tables in ZIMSEC O-Level Additional Mathematics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic22 practice questions1 lesson
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Learning objectives

What the syllabus expects you to be able to do.

  1. 6.2.5.1.1Form 4: explain the characteristics of the normal distribution curve.
  2. 6.2.5.1.2Form 4: use the standard normal variable and tables to find probabilities, including finding z when Φ(z) is known.

Lessons

  • The normal distribution and standard normal tables

    40 min

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Sample question

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

The normal curve, standardising and tables: sample question

1 mark

Z∼N(0,1)Z \sim N(0, 1). Find P(Z<0.83)P(Z < 0.83), correct to 4 decimal places.

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

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