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Median @statistics

Problem Solving — algebra and arithmetic (GMAT Focus Edition)
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by conquistador » Tue Feb 02, 2016 4:13 am
Set J consists of the first (smallest) seven prime numbers.

In below problem, I feel it is not only 1 but both the numbers 1 and 7 since they are less than 9(current median).

Please clarify?
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by MartyMurray » Tue Feb 02, 2016 4:52 am
Hi Meera.

What are the elements of set J?
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by conquistador » Tue Feb 02, 2016 6:55 am
Marty Murray wrote:Hi Meera.

What are the elements of set J?
updated the info.@marty
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by Brent@GMATPrepNow » Tue Feb 02, 2016 7:03 am
Mechmeera wrote:Set J consists of the first (smallest) seven prime numbers.
So, set J = {2, 3, 5, 7, 11, 13, 17}
The median = 7

Adding 7 to the set will not reduce the median.
So, 1 is the only value that will reduce the median.

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by Matt@VeritasPrep » Thu May 11, 2017 8:25 pm
Mechmeera wrote: In below problem, I feel it is not only 1 but both the numbers 1 and 7 since they are less than 9(current median).

Please clarify?
I think you may be mistaking {1, 7, 9, 15, 18} for the set, but those are just five numbers, each of which COULD be added to the set.
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