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Finding the highest number with median
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07 Sep 2018, 08:37
07 Sep 2018, 08:37
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Question Stats:
63% (00:55) correct
36% (01:00) wrong based on 36 sessions
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Q. Three numbers have a range of 2 and a median of 4.4.
Quantity A |
Quantity B |
The greatest of the numbers |
5.4 |
Re: Finding the highest number with median
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07 Sep 2018, 15:09
07 Sep 2018, 15:09
2
Expert Reply
rajlal wrote:
Q. Three numbers have a range of 2 and a median of 4.4.
Quantity A |
Quantity B |
The greatest of the numbers |
5.4 |
The easiest way is picking numbers for this problem.
1. The median is 4.4, i.e. the middle number is 4.4.
2. Range is 2, i.e. the difference between the largest number and the smallest number is 2.
So possible cases:
3.4, 4.4, 5.4 ................... Here Qty A = Qty B
Again 3.5, 4.4 and 5.5 is also possible Here Qty A > Qty B.
Hence D is the correct option.
Re: Finding the highest number with median
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14 Jan 2019, 01:16
14 Jan 2019, 01:16
Expert Reply
we all dived in for 5.4, but think about this, there is no mean, that's always suspicious.
Just go up one point above 4.4, and we have 4.5
4.5 can be ahead of 4.4, and you just need to subtract 2 from 4.5 to get 2.5
put them in a row, and you have
2.5, 4.4, 4.5 thus, there are infinitely many answers to choose, so D
Just go up one point above 4.4, and we have 4.5
4.5 can be ahead of 4.4, and you just need to subtract 2 from 4.5 to get 2.5
put them in a row, and you have
2.5, 4.4, 4.5 thus, there are infinitely many answers to choose, so D
