LEARN · EXPLAIN · REVISE

An event occurs 3k times in 10k trials. Find its relative frequency.

Read the idea, work independently, then explain what changed.

TOPIC 01

Probability: mixed assessment

A mixed assessment: identify the method, justify it and revise your reasoning.

Use one hint at a time. A correction explains what changed, not just the final answer.

01 / Transfer#Your turn

k=11

Skills and prerequisite lessons

Working and explanation

BUILD THE REASONING

Hint 1

Distinguish observed relative frequency from a model probability and describe the experiment.

Hint 2

Use occurrences divided by trials.

Worked solution

Distinguish observed relative frequency from a model probability and describe the experiment.
Calculate or simplify this relation.
$f=33/110=0.3$
Observed frequency is data, not an exact guarantee of future outcomes.

The requested value is 0.3.

Checks and common pitfalls: Observed frequency is data, not an exact guarantee of future outcomes.

Think first. Reveal a hint when the class is ready.

Teacher preparation and assessment