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12 Apr 2012, 19:04
Kudos
Bookmarks
In a set t, the average(arithmatic mean) is equal to the median,which of the following must be true?
1)set t consists of evenly spaced numbers.
2)set T consists of odd number of terms.
3)set T has no mode.
4)None of the above.
Answer Options:
1 only
1 and 2
2 and 3
2 and 4
4 only
The answer mentioned is 4 but i am getting 1 and 2. Can somebody explain?
Thanks
Vikram
1)set t consists of evenly spaced numbers.
2)set T consists of odd number of terms.
3)set T has no mode.
4)None of the above.
Answer Options:
1 only
1 and 2
2 and 3
2 and 4
4 only
The answer mentioned is 4 but i am getting 1 and 2. Can somebody explain?
Thanks
Vikram
Archived Topic
Hi there,
Archived GMAT Club Tests question - no more replies possible.
Where to now? Try our up-to-date Free Adaptive GMAT Club Tests
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12 Apr 2012, 19:20
Kudos
Bookmarks
Mean = Median
They're asking you to disprove each statement (i.e. find sets in which mean=median and the statement is also false).
Possible, but not necessarily true.
t = {1,3,4,5,7} | Mean = 4 | Median = 4
Disprove.
t = {4,4} | Mean = 4 | Median = 4
t = {1,3,4,5,7} | Mean = 4 | Median = 4
Disprove.
t = {4,4} | Mean = 4 | Median = 4 | Mode = 4
t = {1,3,4,5,7} | Mean = 4 | Median = 4 | no mode
Only choice left.
They're asking you to disprove each statement (i.e. find sets in which mean=median and the statement is also false).
Quote:
Possible, but not necessarily true.
t = {1,3,4,5,7} | Mean = 4 | Median = 4
Quote:
Disprove.
t = {4,4} | Mean = 4 | Median = 4
t = {1,3,4,5,7} | Mean = 4 | Median = 4
Quote:
Disprove.
t = {4,4} | Mean = 4 | Median = 4 | Mode = 4
t = {1,3,4,5,7} | Mean = 4 | Median = 4 | no mode
Quote:
Only choice left.
Archived Topic
Hi there,
Archived GMAT Club Tests question - no more replies possible.
Where to now? Try our up-to-date Free Adaptive GMAT Club Tests
for the latest questions.
Still interested? Check out the "Best Topics" block above for better discussion and related questions.
Thank you for understanding, and happy exploring!
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