Year 10 Probability. Independent Events Meaning Rule.

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Presentation transcript:

Year 10 Probability

Independent Events Meaning Rule

Example: A selection of 10 mobile phone offers includes 4 with free connection and 5 with a free second battery, while 1 offer has both free connection and a free second battery. Let C = the event “choosing a mobile phone with a free ______________” Let B = the event “choosing a mobile phone with a free ______________” Summarise the above information in a Venn Diagram and 2-way table. Find i) Pr(C)ii) Pr(C|B) State whether or not the events C and B are independent. Connection Battery C B CC’Total B145 B’325 Total4610

Exercise 8G Proficiency/EnrichmentFoundationStandardAdvanced Understanding1, 2, 3— Fluency4, 67- Problem-solving8,10 Reasoning 12* Enrichment—13 14*

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