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In a group of 10 students, 7 are 13 years old and 3 are 17 years old. What is the average (arithmetic mean) age of these 10 students?
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1 vote
In a group of 10 students, 7 are 13 years old and 3 are

17 years old. What is the average (arithmetic mean) age of these 10
students?

User Qouify
by
8.2k points

2 Answers

2 votes
the average is 7.1 .

User Chomeh
by
7.4k points
5 votes
7.1, or 7 if you have to round it
User Asmgx
by
8.5k points
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