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Maths Grinds
6 Apr 2025

Leaving Certificate Mathematics Question 10 by Maths Grinds

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Leaving Certificate Mathematics Question 10 by Maths Grinds 1

 

A student is driven through Dublin and records whether he gets a “red” or “green” light at each set of traffic lights. He records the following outcomes for 10 sets of traffic lights (R represents “red” and G represents “green”): {R, G, R, G, G, G, R, G, G, G}

 

What is the probability that the next traffic light will be “red”? Is there any problem with how this data was collected?

 

 

 

 

 

 

 

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