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If three samples have means of 10, 20, and 15, respectively, what is their grand mean?

If three samples have means of 10, 20, and 15, respectively, what is their grand mean?
asked 218k views
1 vote
If three samples have means of 10, 20, and 15, respectively, what is their grand mean?

asked
User RockOnGom
by
8.3k points

2 Answers

3 votes
Their grand mean would be:
10+20+15
=45
45÷3
=15
answered
User Esmie
by
8.9k points
4 votes
I believe it would be 15. 10+20+15=45/3=15
answered
User Jwillker
by
8.1k points
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