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# Change in Mean

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Intern
Joined: 17 May 2016
Posts: 10
Concentration: Economics, Operations
Change in Mean  [#permalink]

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28 Oct 2018, 21:58
00:00

Difficulty:

(N/A)

Question Stats:

100% (00:48) correct 0% (00:00) wrong based on 2 sessions

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If two elements are dropped from set X {-10, -8, 0, 6, 7}, what will be the percentage
change in its mean?
(1) The median of the set will remain the same.
(2) The range of the set will decrease by 3.

Can anyone help me with the above questions.
I am not able to understand option B.

OA :- B
Math Expert
Joined: 02 Sep 2009
Posts: 58449
Re: Change in Mean  [#permalink]

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28 Oct 2018, 22:22
Piggu18 wrote:
If two elements are dropped from set X {-10, -8, 0, 6, 7}, what will be the percentage
change in its mean?
(1) The median of the set will remain the same.
(2) The range of the set will decrease by 3.

Can anyone help me with the above questions.
I am not able to understand option B.

OA :- B

Discussed here: https://gmatclub.com/forum/if-two-eleme ... 28785.html
_________________
Re: Change in Mean   [#permalink] 28 Oct 2018, 22:22
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# Change in Mean

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