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The scores of the first 6 competitors in a contest have a mean of 28 points When the 7th competitor is included the mean decreases to 27 points. How many points did the 7th competitor score?
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10 votes
The scores of the first 6 competitors in a

contest have a mean of 28 points
When the 7th competitor is included the
mean decreases to 27 points.
How many points did the 7th competitor
score?

User Peteroid
by
5.1k points

1 Answer

6 votes
do u get it?
1. U need to find the total of first 6 competitors scores by multiplying 6 by 28.
2. Then, find the total of all 7 competitors scores by multiplying 7 by 27.
3. Then, just subtract the values.
The scores of the first 6 competitors in a contest have a mean of 28 points When the-example-1
User Daniel Marbach
by
4.6k points
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