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Answer 1

Required Answer:-

• For comparing two different datas, we can use Arithmetical elements such as ratio, percentage. I am using percentage for easier explanation$.$

City 1:-

• No. of smokers = 125
• Total no. of men = 500

Then, % of smokers:

• = No. of smokers / Total no. of men × 100
• = 125 / 500 × 100
• = 1 / 4 × 100
• = 25 %

City 2:-

• No. of smokers = 375
• Total no. of men = 1000

Then, % of smokers:

• = No. of smokers / Total no. of men × 100
• = 375 / 1000 × 100
• = 37.5 %

Hence:-

• The percentage of smokers in second day i.e. 37.5% is more than the percentage of smokers in first day i.e. 25%.
• Smokers of 2nd > Smokers of 1st

Thus, Our assumption is true.