5., The ages (in years) of 7 students are 12, 18, 9, 11, 7, 13 and 7. Find their average age
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Answer:
(12+18+9+11+7+13+7)/7
77/7=11
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Step-by-step explanation:
A/C to question,
Average of 7 students
= [(12+18+9+11+7+13+7) ÷ 7] Years
= [77 ÷ 7] Years
= 11 Years
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