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Probabilities of participants for Apple products by age

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In a recent survey, participants were asked which Apple products influenced them the most.

ipod iphone ipad total
Age under 20 70 100 130 300
Age 20-40 160 140 90 390
Age over 40 190 110 50 350
Total 420 350 270 1040

#1. What is the probability that the participant was aged 20-40 or was influenced by ipad the most?

#2. What is the probability that the participants were influenced by ipod the most, given that the participants are aged under 20?

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Probabilities of participants for Apple products by age are determined in the solution.

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