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280 people live in a village. • 130 people do not have a bicycle. • 120 people have a bicycle helmet. • 35 of the people who have a bicycle do not have a helmet. a) Use this information to complete the frequency tree. 130 do not have a bicycle 280 have a bicycle 150 b) What percentage of the 130 people who do not have a bicycle own a bicycle helmet?

Sagot :

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